L-tryptophan is an essential amino acid. It is critical for the production of serotonin an melatonin, which help to support a positive mood, healthy sleep patterns and proper immune function. Best Naturals L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality.

All Best Naturals products are manufactured in accordance with Good Manufacturing Practices (GMP), among the highest standards in the world -- Proudly Made in USA -- Purity & Potency Guaranteed

The Many Benefits of L-Tryptophan

L-Tryptophan is an essential amino acid that the body cannot synthesize on its own. It must be obtained through diet or supplementation. L-Tryptophan is critical for the production of serotonin and melatonin. Serotonin helps to support a positive mood, while melatonin promotes healthy sleep patterns. L-Tryptophan also supports proper immune system function.*

How L-Tryptophan Supports a Positive Mood*

Serotonin is a neurotransmitter that plays a role in mood and other brain functions. A deficiency in serotonin has been linked to depression and anxiety.* Supplementing with L-Tryptophan can help to increase levels of serotonin, which can in turn encourage a positive mood.*

L-Tryptophan and Restful Sleep*

Melatonin is a hormone that helps to regulate sleep patterns. It is produced in response to darkness and inhibits feelings of wakefulness.* Supplementing with L-Tryptophan can help increase levels of melatonin, which may promote deep, restful sleep.*

In Summary:

L-Tryptophan is an essential amino acid with many potential benefits.* It is involved in the production of serotonin and melatonin, both of which play important roles in mood and sleep regulation.* L-Tryptophan supplementation may help to support a positive mood* and promote restful sleep*. NOW® L-Tryptophan is rigorously tested for peak E contamination and microbial safety.

Suggested Usage: Take 1-2 capsules 2 to 3 times daily on an empty stomach, with final dose at bedtime, or as directed by your physician.

Store in a cool, dry place after opening.

Supplement Facts

Serving Size: 2 Veg Capsules

Servings Per Container: 30

Description Amount per Serving % Daily Value

L-Tryptophan (Free-Form) 1 g (1,000 mg)

**Daily Value not established.

Other Ingredients: Hypromellose (cellulose capsule), Rice Flour, Ascorbyl Palmitate and Stearic Acid (vegetable source).

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Caution: For adults only. Consult physician if pregnant/nursing, taking medication (especially antidepressants such as SSRIs and MAOIs), or have in a medical condition. May cause drowsiness. Do not use with alcoholic beverages or while operating heavy machinery. Keep out of reach of children.

Natural color variation may occur in this product.

Made and quality tested in the USA with globally sourced ingredients.

Store in a cool, dry place after opening.

Vegetarian/Vegan

Family owned since 1968.

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.

The Many Benefits of L-Tryptophan

L-Tryptophan is an essential amino acid that the body cannot produce on its own. It must be obtained through diet or supplements. L-Tryptophan is known for its ability to encourage a positive mood and promote restful sleep. It is also critical for the production of serotonin and melatonin. Additionally, L-Tryptophan supports proper immune system function. Every lot of NOW L-Tryptophan goes through rigorous testing to ensure it is free of Peak E and microbial contamination.

Here are some of the many benefits of L-Tryptophan:

Mood Support*

L-Tryptophan has long been associated with mood support.* A 2009 study published in the Journal of Affective Disorders found that L-tryptophan was effective in reducing symptoms of mild depression and anxiety in adults.* Furthermore, a 2008 study published in the journal Nutritional Neuroscience found that supplementing with L-tryptophan may help to reduce stress and negative moods.*

Sleep Support*

In addition to its mood-supporting benefits, L-tryptophan can also promote restful sleep.* A 2007 study published in the journal Biological Psychiatry found that subjects who took L-tryptophan before bed reported feeling more rested upon waking compared to subjects who did not take the supplement.*

Immune System Function*

The immune system is responsible for fighting off foreign invaders like bacteria and viruses. Therefore, it's important to keep it functioning properly. Some research suggests that L-tryptophan may help to support proper immune system function.* A 2006 study published in the journal Brain, Behavior, and Immunity found that participants who took 5 grams of L-tryptophan per day for four weeks had a decrease in proinflammatory cytokines—molecules associated with inflammation—compared to those who did not take the supplement.*

In Summary:

L-Tryptophan is an essential amino acid with many potential health benefits, including mood support, sleep support, and immune system function.* Every lot of NOW® L-Tryptophan is tested for purity and potency so you can be sure you're getting the highest quality product available. Try incorporating NOW L-Tryptophan into your daily routine to see if it makes a difference for you!

Suggested Usage: Take 1-2 capsules 2 to 3 times daily on an empty stomach, with final dose at bedtime, or as directed by your physician.

Store in a cool, dry place after opening.

Supplement Facts

Serving Size: 2 Veg Capsules

Servings Per Container: 60

Description Amount per Serving % Daily Value

L-Tryptophan (Free-Form) 1 g (1,000 mg)

**Daily Value not established.

Other Ingredients: Hypromellose (cellulose capsule), Rice Flour, Ascorbyl Palmitate and Stearic Acid (vegetable source).

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Caution: For adults only. Consult physician if pregnant/nursing, taking medication (especially antidepressants such as SSRIs and MAOIs), or have in a medical condition. May cause drowsiness. Do not use with alcoholic beverages or while operating heavy machinery. Keep out of reach of children.

Natural color variation may occur in this product.

Made and quality tested in the USA with globally sourced ingredients.

Store in a cool, dry place after opening.

Vegetarian/Vegan

Family owned since 1968.

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.

L-Tryptophan Can Help You Sleep Better and Wake Up Feeling Refreshed

Have you ever woken up feeling groggy and unrested, even after getting a full night's sleep? It's a frustrating feeling, and one that can lead to a less than productive day. But what if there was a way to wake up feeling refreshed and recharged, ready to take on the day? There is—and it's called L-tryptophan.

L-tryptophan is an essential amino acid that can be found in certain foods like turkey, tofu, and eggs. It's also available in supplement form. L-tryptophan is critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system function.* Every lot of NOW® L-Tryptophan is tested to be free of Peak E and microbial contamination.

How L-Tryptophan Works

Serotonin is a neurotransmitter that plays a role in mood, appetite, and sleep.* Melatonin is a hormone that helps to regulate the body's sleep-wake cycles.* Low levels of serotonin and melatonin have been linked to depression, insomnia, and other health issues.* Supplementing with L-tryptophan can help to increase levels of serotonin and melatonin in the body, which can lead to improved mood and better sleep.* Additionally, L-tryptophan can help to boost the immune system.*

The Benefits of L-Tryptophan

There are many benefits associated with taking L-tryptophan supplements. Because L-tryptophan helps to increase levels of serotonin and melatonin in the body, it can help to improve mood and promote restful sleep.* If you're struggling with insomnia or other sleep issues, L-tryptophan may be able to help. Additionally, because L-tryptophan helps to boost the immune system, it can help you stay healthy during cold and flu season.*

Who Should Take L-Tryptophan?

If you're looking for a natural way to improve your mood or promote restful sleep, then you may want to consider taking an L-tryptophan supplement. However, it's important to speak with your healthcare provider before starting any new supplement regimen. Some people may experience side effects like nausea or headaches when taking L-tryptophan supplements. If you experience any adverse effects after taking an L-tryptophan supplement, discontinue use immediately and consult your healthcare provider.

In Summary:

Looking for a natural way to improve your mood or promote restful sleep*, L-tryptohan an essential amino acid that cannot be produced by the body; it must be obtained through diet or supplementation*L tryptohan supplements increase levels of seratonin and melatonin within the body*can result in enhanced mood or improved sleep*. As always speak with your healthcare professional before starting any new supplement regiment*some people may experience negative side effects like headaches or nausea*. If you do experience these effects stop supplementing immediately an consult your doctor.

Suggested Usage: Take one or two 1/4 level teaspoons 2 to 3 times daily on an empty stomach, with final dose at bedtime, or as directed by your physician.

Store in a cool, dry place after opening.

Supplement Facts

Serving Size: Two 1/4 Level Teaspoons (approx. 1 g)

Servings Per Container: about 57

Description Amount per Serving % Daily Value

L-Tryptophan (Free-Form) 950 mg

*Daily Value not established.

Other Ingredients: Cellulose.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Caution: For adults only. Consult physician if pregnant/nursing, taking medication (especially antidepressants such as SSRIs and MAOIs), or have a medical condition. May cause drowsiness. Do not use with alcoholic beverages or while operating heavy machinery. Keep out of reach of children.

Do not eat freshness packet enclosed.

This product is sold by weight not volume.

Store in a cool, dry place after opening.

Please Recycle.

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.

Unlocking Positive Thoughts: The Power of Source Naturals L-Tryptophan

History of L-Tryptophan:

L-Tryptophan, an essential amino acid, has been an area of scientific interest for numerous decades. Its significance was acknowledged in nutritional science as early as the 20th century, primarily due to its pivotal role in human metabolism and brain function. Research into L-Tryptophan has revealed its critical function as a precursor to serotonin and melatonin, neurotransmitters that regulate mood, sleep, and stress responses. Over time, L-Tryptophan has transitioned from merely being recognized for its nutritional value to being celebrated for its therapeutic potential in addressing psychological well-being and sleep disorders.

Function of L-Tryptophan in the Body:

In the human body, L-Tryptophan serves a crucial function by acting as a stepping stone in the synthesis of serotonin and melatonin. These compounds are essential for regulating mood balance and sleep-wake cycles, respectively. By influencing these key neural pathways, L-Tryptophan plays a significant role in promoting relaxation, enhancing mood, and ensuring restful sleep.

For individuals navigating the challenges of maintaining a positive outlook and seeking natural avenues to enhance their mental well-being, Source Naturals L-Tryptophan emerges as a beacon of hope. This highly pure form of the essential amino acid not only promises a non-pharmaceutical pathway to emotional balance but also offers a scientifically backed solution to improving sleep quality. By integrating Serene Science® L-Tryptophan into their daily regimen, customers can look forward to nurturing a state of serenity and elevated mood, thus embodying the essence of a life experienced in its fullest positivity.

Additional Related Benefits:

• Promotes Relaxation: Contributes to a calm and relaxed state, facilitating stress management.
• Supports Restful Sleep: Enhances the quality of sleep, allowing for a rejuvenating rest.
• Encourages Positive Mood: Aids in uplifting mood, contributing to overall emotional well-being.
• Potential Benefits to B Vitamin Levels: When necessary, converts to niacin, helping to fulfill essential vitamin requirements and support metabolic processes.
• Quality Assurance: Rigorously tested, ensuring an exceptionally pure product that meets the highest standards of quality.

L-Tryptophan stands as a key pillar in the foundation of mental health and emotional equilibrium. It is more than merely an amino acid; it is the precursor to serotonin, often referred to as the "feel-good" neurotransmitter, and melatonin, the hormone pivotal for regulating sleep cycles. This essential nutrient thus plays a dual role, not only enhancing the mood of individuals by increasing serotonin levels but also promoting better sleep by facilitating melatonin production, laying the groundwork for a sound mind in a sound body.

Harness the power of Source Naturals L-Tryptophan to unlock the door to a happier, more relaxed state of being. By incorporating this scientifically backed, high-purity amino acid into your daily routine, you can pave the way to improved mental well-being and restorative sleep, opening up new avenues for emotional balance and a positive outlook on life. Don't wait to take control of your emotional and psychological well-being. Act now to invest in your happiness and peace of mind with Source Naturals L-Tryptophan, and start your journey towards a brighter, more serene tomorrow.

Elevate Your Mood & Sleep Naturally: Experience the Magic of Source Naturals L-Tryptophan

A Glimpse into the History

L-Tryptophan, an amino acid discovered in the early 20th century, quickly gained attention not just for its nutritional significance but for its profound impact on human metabolism and mental health. Over the decades, it has been meticulously studied for its role as a precursor to serotonin and melatonin, making it a pivotal element in discussions around mood regulation, sleep, and overall psychological well-being.

L-Tryptophan in the Body

In the human body, L-Tryptophan performs the critical function of helping synthesize serotonin and melatonin. This synthesis is essential not only for mood regulation and the initiation of sleep but also for maintaining a harmonious balance between emotional and physical health.

For customers keen on nurturing their mental wellness through natural means, Source Naturals L-Tryptophan offers a beacon of hope. By facilitating the production of serotonin and melatonin, it empowers individuals to harness the twin pillars of restful sleep and positive mood, naturally. This pure, high-quality supplement acts as a key to unlocking a more serene, fulfilling life. We understand the importance of mental health in the pursuit of overall well-being, which is why integrating Source Naturals L-Tryptophan into your daily regimen promises a step towards emotional balance and a brighter outlook on life.

Additional Related Benefits

• Promotes Serenity: By aiding in the synthesis of serotonin, it fosters relaxation and manages stress more effectively.
• Encourages Better Sleep: Contributes to the production of melatonin, ensuring a restful and healthy sleep cycle.
• Supports Positive Mood: Elevates mood levels naturally, helping you face each day with renewed optimism.
• Converts to Niacin: Demonstrates versatility by converting to niacin when required, supporting essential B vitamin levels and metabolic health.
• Exemplifies Purity and Quality: The commitment to rigorous testing guarantees a product of the highest purity and quality standards, ensuring the best for your mental and physical health.

By choosing Serene Science® L-Tryptophan, individuals gain access to a meticulously researched and quality-assured supplement that promises to support relaxation, improve sleep quality, and enhance emotional well-being, setting the foundation for a life lived with positivity and peace.

Discover the path to your well-being that science and nature intertwine with Source Naturals L-Tryptophan. This pinnacle of purity and scientific endeavor is not just a supplement; it’s your ally in the pursuit of tranquility and rejuvenation. Take the step today towards a brighter tomorrow by securing your Source Naturals L-Tryptophan—because your peace of mind and body should not just be a goal, but a reality.

Anabol Naturals’ Pharmaceutical Grade L-Tryptophan CMS provides the absolute purest quality free form L-Tryptophan, used worldwide by medical and holistic practitioners. Excessive degradation of L-Tryptophan from food sources by the body in the digestive process or by aging can preclude adequate production of serotonin in the brain. This in turn can result in poor sleep quality, stress, emotionalism (mood swings), weight gain and a loss of the feeling of well being. L-Tryptophan is a precursor to serotonin and is powerfully effective.

Serving Size 1 Capsule
Servings per container 90 servings

Ajinomoto L-Tryptophan ............ 500mg

Other Ingredients: Vegetable Capsules, Cellulose, Magnesium Stearate (vegetable source), Silicon dioxide.

Suggested Use: Take 1 or 2 Capsules daily, or as directed by a health practitioner. For optimum absorption, take separately from protein-containing foods and dietary supplements containing protein or amino acids.

Suitable for vegetarians

Best L-Tryptophan products contain Ajinomoto TryptoPure™. Tryptophan is an essential amino acid readily converted by the body to the neurotransmitter serotonin. Able to cross the blood-brain barrier, L-tryptophan is altered by enzymes to first form the intermediate amino acid 5-HTP and then serotonin. It is also the metabolic precursor to melatonin and to the B vitamin niacin. Supplementing the diet with pure L-tryptophan like TryptoPure™, found in Doctor’s Best L-Tryptophan products, can improve sleep and enhance mood, and may also be beneficial in reducing carbohydrate cravings. *

What is Ajinomoto TryptoPure™?

TryptoPure™ is pure, pharmaceutical-grade L-tryptophan produced by the world's leading maker of amino acids—Ajinomoto. The global leader in the research, production, and sales of amino acids, Ajinomoto was one of the first to make pharmaceutical-grade amino acids; they literally invented the process.

Ajinomoto TryptoPure™ is considered the purest, most trusted L-tryptophan available. It is manufactured via fermentation strictly from vegetable sources, not animal, and it is between 99% and 100% pure. The level of impurities in tryptophan from other makers can be much higher.

In fact, from 1989 to 2006 the FDA was so concerned about the quality of tryptophan coming into the U.S., that it instituted an import ban with one exception: Ajinomoto's TryptoPure™. In 1989, the importation of L-tryptophan was banned in the United States after cases of an autoimmune illness called eosinophilia-myalgia syndrome were traced to an improperly prepared batch of tryptophan. The FDA limited L-tryptophan availability to prescription drugs, infant formulas, and enteral feeding products. Because the FDA recognized the unsurpassed quality Ajinomoto’s TryptoPure™, it was excepted from the ban, but its use was limited to those few products. Today, it is available over-the-counter in Doctor’s Best L-Tryptophan products.

Promotes Normal, Healthy Restful Sleep*

Adequate sleep is a necessity for maintaining proper health. Sleeping well enhances our ability to function during the day. The body requires sleep as downtime to regenerate and repair essential bodily functions and allow us to feel refreshed. L-Tryptophan is a potent nutrient that has been found to enhance restful, peaceful sleep via a number of mechanisms. L-tryptophan is best known for its ability to decrease the amount of time it takes to fall asleep (George et al. 1989; Hartmann 1982). It has also been shown in studies to enhance total sleep time, decrease intermittent wakening, and decrease early morning wakefulness (Schneider-Helmert 1981; Wyatt et al. 1970), allowing the body to feel rejuvenated.

The clinical efficacy of L-tryptophan is due to its ability to support normal production of serotonin in the brain (Demisch et al. 1987b; Hartmann 1982) (Demisch et al. 1987a). Serotonin has been implicated in the regulation of sleep, mood, appetite, and temperature, among other roles that it plays in the body (Birdsall 1998). In a review article summarizing findings from over fifty studies conducted between 1970 and 1985, researchers concluded that L-tryptophan enhances overall sleep quality and also effectively provides a remedy for occasional sleeplessness. * It does this without dangerous side effects and without any feelings of next-day drowsiness. (Leiberman 1985)(Schneider-helmert 1986).

Enhances Mood and Sensations of Well-being*

Clinical studies show that L-tryptophan supplementation can positively affect mood and emotional well-being. A randomized, double blind, placebo-controlled trial of 115 individuals found that the administration of L-tryptophan was significantly more effective than placebo for enhancing mood and affect (Thomson J et al. 1982). The subjects took 1 gram of L-tryptophan or an identical placebo capsule three times per day for 12 weeks. Mood and affect were assessed using a standardized, clinically recognized rating scale. Scores in the group supplementing with L-tryptophan were significantly better than placebo at the end of the trial period, indicating L-tryptophan’s success at supporting healthy mood.

Further studies suggest that in healthy individuals, L-tryptophan has positive effects on mood, behavior, and emotional processing. For example, in a recent study of healthy females with normal moods and no history of depression, L-tryptophan supplementation alters the processing and perception of emotional stimuli towards a more positive bias. Supplementation with one gram three times per day caused an increase in happy facial expressions, a decrease in negative and disgusted facial expressions, and a decrease in the attention paid to negative words (Murphy et al. 2006). A second study conducted in 2006 with a double blind crossover design indicated that the same dose of L-tryptophan (1 gram three times per day) significantly decreased quarrelsome and aggressive behaviors while enhancing agreeable behaviors in everyday social interactions. In this study, participants reported more positive and less negative emotions and rated their interactions as more pleasant (aan het Rot et al. 2006).

A number of other studies point to the ability of L-tryptophan supplementation to balance mood. A study published in 1990 suggested that individuals with seasonal variations in mood responded well to supplementation with L-tryptophan (McGrath et al. 1990). Furthermore, compared to standard light therapy, the mood enhancement associated with L-tryptophan supplementation lasts longer after discontinuation than the effects seen after stopping light therapy (Ghadirian et al. 1998).

An additional double blind placebo-controlled study found that two grams of L-tryptophan administered three times a day, from the day of ovulation to the third day of menstruation (the luteal phase) in healthy women, significantly relieved the most prominent mood symptoms associated with PMS. After three months of use, women taking L-tryptophan experienced statistically significant control of extreme mood swings, sadness, irritability, and tension. It also improved their perceived quality of life (Steinberg et al. 1999).

Decreased Carbohydrate Cravings to Support Weight Management Efforts*

L-tryptophan may play a supportive role in helping individuals who are currently involved in weight management programs and diets by helping to reduce carbohydrate cravings. During dieting, serotonin levels drop dramatically. Serotonin plays a role in controlling appetite, and eating carbohydrate-rich foods increases serotonin levels in the brain. This may explain carbohydrate cravings and resultant binge eating in some dieters. While no human trials have examined L-tryptophan supplementation directly, a number of clinical trials have used supplemental 5-HTP, the amino acid produced in the body from L-tryptophan. Results of these trials have shown decreases in overall food intake and a subsequent reduction in weight in individuals taking 5-HTP. (Birdsall, 1998). The majority (75%) of the decreased food intake was from carbohydrates, suggesting decreased cravings for carbohydrates in individuals on 5-HTP (Cangiano et al. 1991). It is likely that L-tryptophan supplementation would have similar effects.

Safety

Suggested Adult Use: Take 1 or 2 capsules daily. For optimum absorption, take separately from protein-containing foods and dietary supplements containing protein or amino acids.

Uncontaminated L-tryptophan has a thirty-year history of safety and absence of adverse effects at levels commonly consumed by humans. When administered in abnormally high dosages of 7 grams (for a 150 pound human) per day, potential side effects include gastric irritation, vomiting, and head twitching (2006). Use during pregnancy or lactation has not been studied as of yet and is, therefore, not recommended. L-tryptophan should not be used by individuals taking antidepressant drugs without close medical supervision.

Does Not Contain: milk, egg, wheat, corn, sugar, sweeteners, starch, salt, or preservatives.

Scientific References

1. 2006. L-Tryptophan. Monograph. Altern Med Rev 11: 52-6.

2. aan het Rot, M., Moskowitz, D. S., Pinard, G. and Young, S. N. 2006. Social behaviour and mood in everyday life: the effects of tryptophan in quarrelsome individuals. J Psychiatry Neurosci 31: 253-62.

3. Birdsall, T. C. 1998. 5-Hydroxytryptophan: a clinically-effective serotonin precursor. Alternative Medicine Review 3: 271-280.

4. Cangiano, C., Ceci, F., Cairella, M., Cascino, A., Del Ben, M., Laviano, A., Muscaritoli, M. and Rossi-Fanelli, F. 1991. Effects of 5-hydroxytryptophan on eating behavior and adherence to dietary prescriptions in obese adult subjects. Adv Exp Biol Med 294 ("Kynurenine and Serotonin Pathways"): 591-593.

5. Demisch, K., Bauer, J. and Georgi, K. 1987a. Treatment of severe chronic insomnia with L-tryptophan and varying sleeping times. Pharmacopsychiatry 20: 245-248.

6. Demisch, K., Bauer, J., Georgi, K. and Demisch, L. 1987b. Treatment of severe chronic insomnia with L-tryptophan: results of a double-blind cross-over study. Pharmacopsychiatry 20: 242-244.

7. George, C. F., Millar, T. W., Hanly, P. J. and Kryger, M. H. 1989. The effect of L-tryptophan on daytime sleep latency in normals: correlation with blood levels. Sleep 12: 345-53.

8. Ghadirian, A. M., Murphy, B. E. and Gendron, M. J. 1998. Efficacy of light versus tryptophan therapy in seasonal affective disorder. J Affect Disord 50: 23-7.

9. Hartmann, E. 1982. Effects of L-tryptophan on sleepiness and on sleep. J Psychiatr Res 17: 107-13.

10. McGrath, R. E., Buckwald, B. and Resnick, E. V. 1990. The effect of L-tryptophan on seasonal affective disorder. J Clin Psychiatry 51: 162-3.

11. Murphy, S. E., Longhitano, C., Ayres, R. E., Cowen, P. J. and Harmer, C. J. 2006. Tryptophan supplementation induces a positive bias in the processing of emotional material in healthy female volunteers. Psychopharmacology (Berl) 187: 121-30.

12. Schneider-Helmert, D. 1981. Interval therapy with L-tryptophan in severe chronic insomniacs. A predictive laboratory study. International Pharmacopsychiatry 16: 162-173.

13. Steinberg, S., Annable, L., Young, S. N. and Liyanage, N. 1999. A placebo-controlled clinical trial of L-tryptophan in premenstrual dysphoria. Biol Psychiatry 45: 313-20.

14. Wyatt, R. J., Engelman, K., Kupfer, D. J., Fram, D. H., Sjoerdsma, A. and Snyder, F. 1970. Effects of L-tryptophan (a natural sedative) on human sleep. Lancet 2: 842-846.

Unlock Restful Nights: How Source Naturals L-Tryptophan Fosters Deep, Healing Sleep

The History of L-Tryptophan

L-Tryptophan, an essential amino acid, has played a pivotal role in nutritional science and wellness for decades. Unlike non-essential amino acids, the human body cannot synthesize L-Tryptophan internally; it must be obtained through diet or supplementation. Historically, its importance was underscored in the mid-20th century, as researchers began to uncover its critical role in the synthesis of key neurotransmitters, including serotonin and melatonin. Its impact on mood regulation, sleep cycles, and general well-being has since made L-Tryptophan a focal point of both scientific study and holistic health approaches.

What L-Tryptophan Does in the Body

In the human body, L-Tryptophan serves as a precursor to serotonin, a neurotransmitter that plays a crucial role in mood regulation, and melatonin, which governs sleep-wake cycles. By supporting the synthesis of these hormones, L-Tryptophan aids in promoting relaxation, enhancing overall mood, and fostering restful sleep.

For customers in pursuit of natural ways to support mood, relaxation, and sleep, Source Naturals L-Tryptophan presents a compelling solution. This essential amino acid not only contributes to the synthesis of mood-regulating hormones but also offers a base for the body's production of melatonin, facilitating a natural sleep cycle. Given its purity and consistent quality testing, Source Naturals L-Tryptophan stands out as a trustworthy choice for individuals aiming to enhance their well-being through natural, nutritional means.

Additional Related Benefits

• Promotes Positive Mood: By aiding serotonin production, L-Tryptophan can help elevate your mood, providing a sense of calm and well-being.
• Supports Restful Sleep: It plays a critical role in the production of melatonin, the hormone responsible for regulating sleep patterns, thereby assisting in achieving restful sleep.
• Strengthens Immune System: L-Tryptophan is involved in the synthesis of kynurenines, which regulate immune function, bolstering the body's ability to fight off illnesses.
• Aids in Digestive Health: It can convert to niacin in the body, essential for a healthy digestive system and the metabolism of food.
• Enhances Circulation and Nervous System Health: The conversion to niacin also supports circulation and maintains a healthy nervous system, contributing to overall physiological well-being.

L-Tryptophan in Supporting Mood, Relaxation, and Sleep

L-Tryptophan stands as a critical building block for the body's synthesis of serotonin and melatonin, two hormones that are integral to mood regulation, relaxation, and sleep. Its unique ability to cross the blood-brain barrier allows it to effectively influence neurotransmitter activity, thereby supporting a balanced emotional state and promoting healthy sleep patterns.

Unlock the key to enhanced well-being with Source Naturals L-Tryptophan. Whether you're seeking to elevate your mood, find tranquility in your day, or enjoy restorative sleep, L-Tryptophan serves as your gateway to a balanced and enriched life. Don't miss out on the opportunity to transform your health—take the first step towards a more serene and joyful existence by trying L-Tryptophan today. Act now to begin your journey toward optimal wellness.

Source Naturals L-Tryptophan: Your Natural Ally in Mood, Sleep, and Wellness

The History of L-Tryptophan

L-Tryptophan's significance in nutritional science and holistic wellness emerged in earnest during the mid-20th century. Recognized as an essential amino acid, it spotlighted the intricate relationship between diet, neurotransmitter synthesis, and overall health. Pioneering studies underscored its role in producing serotonin and melatonin, hormones crucial for mood and sleep, propelling L-Tryptophan to prominence in discussions about natural health solutions.

What L-Tryptophan Does in the Body

In the human body, L-Tryptophan acts as a fundamental precursor to serotonin and melatonin, neurotransmitters vital for mood stabilization and sleep regulation. Its capacity to positively influence these areas marks it as an essential component of emotional well-being and circadian rhythm management.

For customers venturing into the realm of natural supplements to enhance mood, relaxation, and sleep, Source Naturals L-Tryptophan represents a beacon of hope. Its scientifically backed role in the synthesis of serotonin and melatonin offers a trusted, natural pathway to improved mental and emotional health. With its excellent purity and assured quality, Source Naturals L-Tryptophan stands as the preferred choice for individuals committed to nurturing their well-being holistically. Encouraging a deeper, more restorative sleep and fostering a balanced mood, this supplement is a versatile ally against the challenges of stress and restlessness. Exploring the benefits of L-Tryptophan could very well be the turning point toward a more tranquil and fulfilling life.

Additional Related Benefits

• Fosters Emotional Well-Being: By enhancing serotonin production, it contributes significantly to elevating mood and instilling a sense of calm.
• Ensures Quality Slumber: Critical in melatonin synthesis, it helps regulate sleep patterns for restorative rest.
• Bolsters Immune Function: Acting as a precursor to kynurenines, it plays a strategic role in regulating immune response.
• Supports Digestive Health: Its conversion to niacin is pivotal for maintaining a healthy digestive system, food metabolism, and digestive acid production.
• Promotes Nervous System and Circulatory Health: Niacin also aids in maintaining healthy circulation and nerve function, encapsulating L-Tryptophan's multifaceted benefits to physical and mental health.

L-Tryptophan: A Key Ingredient for Mood, Relaxation, and Sleep

L-Tryptophan is a vital precursor to essential neurotransmitters serotonin and melatonin, playing a significant role in mood regulation, relaxation, and sleep cycle management. Its unique ability to cross the blood-brain barrier distinguishes it as a potent natural supplement for enhancing emotional well-being and ensuring restful nights. By providing the foundational support for neurotransmitter synthesis, L-Tryptophan lays the groundwork for a serene and balanced life.

Unlock the full potential of your emotional and physical well-being with Source Naturals L-Tryptophan. Bring harmony to your mind and body, experience the tranquility of enhanced mood and welcoming restful sleep into your nightly routine. Take action today to elevate your quality of life. Order now and join the multitude of satisfied individuals who have transformed their lives with L-Tryptophan. Begin your journey to optimal wellness and live each day to its fullest.

Source Naturals L-Tryptophan 500mg: Your Pathway to Peaceful Nights and Joyful Days

The History of L-Tryptophan

Discovered in the late 19th century, L-Tryptophan’s significant contributions to mental health and sleep regulation were not fully appreciated until the 20th century. Its role as a critical precursor to serotonin and melatonin highlighted its importance in mood regulation, stress response, and sleep/wake cycles, shifting it into the spotlight for natural wellness remedies.

What L-Tryptophan Does in the Body

In the human body, L-Tryptophan serves as a crucial building block for the production of serotonin and melatonin, neurotransmitters that regulate mood and sleep. Its ability to influence these key factors makes L-Tryptophan essential for maintaining emotional balance, stress management, and healthy sleep patterns.

For individuals seeking a natural solution to enhance mood, relaxation, and sleep, Source Naturals L-Tryptophan 500mg offers a scientifically supported option. This supplement provides an effective way to naturally increase serotonin and melatonin levels, facilitating a calm, content state of mind and encouraging restful sleep. Adopting L-Tryptophan into one's wellness regimen promises to elevate one's overall quality of life, helping to manage daily stressors with more resilience and enjoy the profound benefits of improved mental and emotional well-being.

Additional Related Benefits of L-Tryptophan

• Optimizes Emotional Equilibrium: Facilitates an uplifted, stable mood by encouraging serotonin production.
• Promotes Quality Sleep: Assists in the synthesis of melatonin, contributing to regular, restorative sleep cycles.
• Enhances Immune Functionality: By serving as a precursor for kynurenines, it supports effective immune regulation.
• Improves Digestive Health: The conversion to niacin ensures a robust digestive system and optimizes food metabolism.
• Boosts Circulatory and Nervous System Health: Niacin from L-Tryptophan aids in sustaining healthy circulation and nerve function, underlining its comprehensive benefits.

L-Tryptophan: A pivotal amino acid, L-Tryptophan is the keystone in the production of serotonin and melatonin, the neurotransmitters that are fundamental to elevating mood, promoting relaxation, and ensuring restful sleep. It stands as a natural, effective means to support emotional balance and a healthy sleep cycle, making it an indispensable supplement for those aiming to enhance their mental wellness and relaxation.

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The History of L-Tryptophan

L-Tryptophan was identified in the late 19th century, but its profound influence on mental wellness and sleep management wasn't fully recognized until the 20th century. This essential amino acid's crucial role as a precursor to serotonin and melatonin spotlighted its significant potential in mood regulation and sleep improvement, positioning L-Tryptophan at the forefront of natural remedies aimed at enhancing mental health.

What L-Tryptophan Does in the Body

In the body, L-Tryptophan acts as a fundamental building block for serotonin and melatonin, neurotransmitters that are vital for mood balance and sleep regulation. By supporting the natural production of these hormones, L-Tryptophan aids in maintaining an emotional equilibrium, creating a pathway to stress relief, and fostering a restorative sleep cycle.

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If you're on a quest for natural solutions to enhance your mood, find relaxation, and secure restful sleep, Source Naturals L-Tryptophan 500mg could be the key ingredient you've been searching for. Imagine ending your day feeling genuinely content, the stress of your daily routine melting away, and slipping into a deep, restorative sleep each night. With this pure and high-quality supplement, you're not just purchasing a product; you're investing in a lifestyle shift towards sustainable wellness. It's time to step into a world where your mental well-being is given priority, supported by the natural, calming effects of L-Tryptophan.

Additional Related Benefits of L-Tryptophan

• Mood Support: Encourages relaxation and supports a positive mood by aiding serotonin production.
• Sleep Quality: Plays a critical role in melatonin synthesis, contributing to restful and regular sleep cycles.
• Immune System Support: Functions as a precursor for kynurenines that help modulate immunity, enhancing overall health.
• Digestive Wellness: Its conversion to niacin facilitates healthy digestion and efficient metabolism of food.
• Circulation and Nervous System Health: Niacin produced from L-Tryptophan promotes healthy blood circulation and supports nerve function, encompassing a holistic approach to well-being.

L-Tryptophan: An essential amino acid, L-Tryptophan is the linchpin in the body's synthesis of serotonin and melatonin, the critical neurotransmitters that govern our mood, relaxation, and sleep patterns. By naturally increasing these neurotransmitter levels, L-Tryptophan helps to ease stress, promote a sense of calm and well-being, and encourage a deep, restful night's sleep. This makes it an invaluable supplement for anyone looking to improve their mental health and quality of sleep.

Don't miss the chance to transform your nights and the way you feel during the day. Source Naturals L-Tryptophan 500mg stands out as a highly effective, natural solution for those seeking to balance their mood, achieve deeper relaxation, and enjoy consistent, restorative sleep. Make the choice to prioritize your mental and emotional well-being today. Click to purchase your pathway to a more peaceful mind and restful sleep now!

From Restlessness to Relaxation: Discover Source Naturals L-Tryptophan’s Natural Power

The History of L-Tryptophan

L-Tryptophan is an essential amino acid discovered in the early 20th century, recognized for its pivotal role in human nutrition and wellness. Essential to the human diet, it has long been studied for its ability to enhance mood, support relaxation, and promote healthy sleep patterns. Over the years, L-Tryptophan has gained prominence in the realm of dietary supplements, heralded for its natural efficacy in boosting serotonin and melatonin levels in the brain, thus influencing emotional well-being and sleep.

What L-Tryptophan Does in the Body?

In the human body, L-Tryptophan serves as a key precursor to serotonin and melatonin, crucial hormones for mood regulation and sleep. This relationship helps articulate why L-Tryptophan supplementation can be an effective approach to improving relaxation, uplifting mood, and fostering better sleep quality.

For those seeking natural solutions to support mood, relaxation, and sleep, Source Naturals L-Tryptophan 500mg presents an ideal solution. Through its pivotal role in serotonin and melatonin synthesis, L-Tryptophan emphasizes a holistic approach to well-being. Imagine seamlessly transitioning into a state of relaxation after a long day, or gently drifting into restful sleep, and waking up feeling rejuvenated. This is the tranquil experience L-Tryptophan aims to offer, making it a fitting companion for anyone looking to enhance their mental, emotional, and sleep health naturally.

Additional Related Benefits

• Promotes Positive Mood: By supporting serotonin production, it aids in uplifting spirits and stabilizing mood.
• Facilitates Restful Sleep: Enhances overall sleep quality by contributing to healthy melatonin levels.
• Supports Immune Function: Its role in the synthesis of kynurenines helps regulate the body’s immune response.
• Converts to Niacin: Supports healthy circulation, nervous system, metabolism, and digestive health.
• High-Quality Assurance: Source Naturals L-Tryptophan is acclaimed for its purity and undergoes rigorous testing to meet superior quality standards.

L-Tryptophan is more than just an amino acid; it's your gateway to improved wellness. Acting as a crucial building block for serotonin and melatonin, L-Tryptophan directly influences your mood, relaxation levels, and sleep quality. Its natural capacity to elevate serotonin production not only uplifts your spirits but also promotes a calmness that is essential for a restful night's sleep. With Source Naturals L-Tryptophan 500mg, you're not just purchasing a supplement; you're investing in your mental and emotional well-being.

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Finding Peace in a Pill: How Source Naturals L-Tryptophan 500mg Supports Your Well-Being

L-Tryptophan in the Body

In the body, L-Tryptophan plays a crucial role as a precursor to serotonin and melatonin, hormones essential for mood regulation and sleep cycles. Its conversion into these significant hormones facilitates a better quality of sleep, uplifts mood, and aids in maintaining a calm state, crucial for overall well-being.

If you're navigating through the hurdles of daily stress and seeking a natural ally to support your mood, enhance relaxation, and improve sleep, Source Naturals L-Tryptophan 500mg is your beacon of hope. This essential amino acid operates at the heart of serotonin and melatonin production, promising to gently guide you into a tranquil state after a bustling day and ensure a restorative night's sleep. Think of it as nurturing your body's inner equilibrium, harmonizing your emotions, and rekindling your zest for life—all through the wisdom of nature's bounty. Trust in the soothing embrace of L-Tryptophan to reclaim your nights and rediscover joy in your days.

Additional Related Benefits

• Promotes Positive Mood: Bolsters serotonin levels, enhancing mood and combating daily stress.
• Facilitates Restful Sleep: Contributes to the synthesis of melatonin, ensuring a peaceful night's sleep.
• Supports Immune Function: Acts as a precursor for kynurenines, which play a key role in immune regulation.
• Converts to Niacin: Aids in supporting healthy circulation, nervous system health, food metabolism, and digestive wellness.
• Exceptional Purity and Quality: Sourced with impeccable standards, ensuring a superior and efficacious supplement.

L-Tryptophan: The Key to Serenity

L-Tryptophan stands out as a beacon for those seeking natural support for mood enhancement, relaxation, and sleeping well. This indispensable amino acid is at the core of producing serotonin and melatonin, the hormones responsible for our feelings of happiness and our sleep-wake cycles. By incorporating L-Tryptophan into your daily nutrition, you empower your body to maintain a balanced mood, enjoy serene relaxation, and indulge in the profound, restorative sleep it deserves.

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Transform Your Nights & Days: L-Tryptophan for Ultimate Relaxation and Well-Being

The History of L-Tryptophan

L-Tryptophan has a storied past, tracing back to its early discovery as an essential amino acid crucial for human health. Its significance was further illuminated when scientists revealed its vital role in the synthesis of serotonin and melatonin, two hormones pivotal to regulating mood and sleep. This discovery underscored L-Tryptophan's potential as a natural aid for emotional balance and sleep quality, positioning it as a key ingredient in the pursuit of holistic wellness.

What Does L-Tryptophan Do in the Body?

In the human body, L-Tryptophan acts as a precursor to serotonin, a neurotransmitter that regulates mood, and melatonin, which controls sleep cycles. This essential amino acid thus plays a critical role in promoting emotional well-being and restful sleep, making it an invaluable resource for those seeking natural ways to foster balance and relaxation.

Imagine a natural solution that gently ushers you into a state of relaxation, soothes your mind, and cradles you into deep, restorative sleep night after night. Source Naturals L-Tryptophan 500mg is that solution. Crafted from the finest ingredients, it stands as a beacon of hope for those seeking to enhance their mood, find serenity amidst the daily bustle, and enjoy the profound benefits of quality sleep. This powerful supplement not only supports your emotional and physical well-being but also aligns with the rhythms of your body to promote a balanced, joyful life. Don't just dream of better rest and happier days; make them your reality with L-Tryptophan 500mg.

Additional Related Benefits

• Promotes Relaxation and Positive Mood: Enhances serotonin production, easing stress and uplifting spirits.
• Encourages Deep, Restorative Sleep: Supports melatonin synthesis for improved sleep quality.
• Supports Immune Function: Acts as a precursor for kynurenines, key in regulating immunity.
• Aids in Circulatory and Nervous System Health: Converts to niacin, improving blood flow and supporting nervous system functions.
• Enhances Digestive Wellness: Niacin aids in producing digestive acids for improved gut health.
• Exceptional Quality and Purity: Rigorously tested to meet the highest standards, ensuring you receive the best nature has to offer.

Unveiling the Magic of L-Tryptophan

L-Tryptophan is not just any amino acid; it's a key to unlocking a balanced and joyful life. By serving as a precursor to serotonin, it enhances your mood, making the stresses of daily life feel like distant memories. Its critical role in synthesizing melatonin ensures that every night can be filled with restful, deep sleep, allowing you to wake up refreshed and full of vitality. It's the gentle nudge your body needs to find its natural rhythm of relaxation and rejuvenation.

Your Path to a Better Tomorrow Begins Today!

Say goodbye to the tossing and turning of sleepless nights and the gray clouds of uninvited stress. Source Naturals L-Tryptophan 500mg is your golden ticket to a life filled with serene days and tranquil nights. Imagine easing into each day with a rejuvenated spirit and closing each night with a peaceful descent into dreamland. This isn't just a supplement; it's a lifestyle change — a promise of well-being you make to yourself.

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