Think of synthetic folic acid like crude oil that needs extensive refining before your engine can run. NOW® Methyl Folate provides high-octane, refined fuel in the form of patented Quatrefolic® (chemical formula: C32H51N9O16) [1, 2]. Each vegetarian capsule delivers 5,000 mcg of active (6S)-5-methyltetrahydrofolate glucosamine salt [2]. This clinical-strength dosage enters your bloodstream immediately to support deep cellular methylation, red blood cell integrity, and cardiovascular resilience [1, 3].
Quick Specs Snapshot
✓Active Form & Potency: 8,500 mcg DFE [5,000 mcg active (6S)-5-MTHF] from patented Quatrefolic® glucosamine salt per veg capsule (2,125% DV).
✓Primary Target: Core one-carbon methylation pathways, homocysteine clearance, and neurotransmitter co-factor production [1, 3, 4].
✓Supply & Value: 50 vegetarian capsules per bottle deliver high-potency clinical support in an eco-friendly 100% PCR recycled bottle.
✓Purity & Dietary Status: 100% Vegan, non-GMO, and free of wheat, gluten, soy, milk, egg, fish, shellfish, tree nuts, and sesame.
Buyer's Guide & Form Comparison
Why the Quatrefolic® Form Matters
Generic drugstore supplements rely on synthetic folic acid. Your body must pass synthetic folic acid through a four-stage biochemical breakdown chain [1, 2]. The final link in this chain requires an active MTHFR enzyme (methylenetetrahydrofolate reductase) [1]. However, millions of people possess genetic polymorphisms that disrupt this enzyme [1, 2]. Unconverted folic acid can build up in circulation while cells remain depleted of functional methyl donors [2, 4].
Older active supplements used calcium-bound 5-MTHF salts, which degrade when exposed to humidity and dissolve slowly in the gut [2]. Quatrefolic® pairs (6S)-5-MTHF with a natural glucosamine salt [2]. Think of glucosamine like a water-soluble escort: it dissolves over 100 times better than calcium salts in digestive fluids [1, 2]. This guarantees prompt uptake into intestinal cells without demanding complex liver conversions [1, 2].
Is This Formula Right for You?
Best Choice For:
✓Documented MTHFR Gene Variants: Individuals with sluggish methylation pathways requiring maximum bioavailable 5-MTHF saturation [1, 2].
✓Advanced Cardiovascular Support: Adults needing intensive nutritional assistance to recycle elevated homocysteine into healthy methionine [1, 3].
✓Cognitive & Neurotransmitter Synthesis: Individuals seeking pure active methyl donors that cross into the brain to support serotonin and dopamine production [3, 4].
Consider Another Option If:
✗Standard Maintenance Needs: If you do not require high-dose replenishment, standard 400 mcg to 1,000 mcg formulas are more suitable.
✗Unmonitored B-12 Status: High levels of folate can mask hematological indicators of Vitamin B-12 deficiency; ensure regular B-12 monitoring [3, 4].
✗Specific Prescription Regimens: Patients using methotrexate, phenytoin, phenobarbital, or primidone must consult their prescribing physician before using high-potency folates.
Store Guarantee: Every bottle is backed by VitaNet®, LLC's 31-year reputation and unconditional 100% money-back guarantee (even on opened bottles), allowing you to evaluate your response risk-free.
How It Works in the Body
1. The Molecular Relay Race (Homocysteine Recycling)
Think of methylation like a high-speed relay race where runners pass baton tags between runners. In human cells, these batons are one-carbon methyl groups (-CH3) [1, 3]. NOW® Methyl Folate carries this methyl tag directly into the enzyme methionine synthase [1]. It attaches the tag to homocysteine, a normal byproduct of protein metabolism [1, 3]. This transfer converts homocysteine into beneficial methionine, which subsequently forms SAMe (S-adenosylmethionine), the body's primary methyl donor [1, 4].
Think of your cellular DNA like an architect's printed blueprints. Every time your body replaces intestinal cells or creates fresh blood, it must print flawless copies of this genetic code [1, 3]. Bioactive 5-MTHF delivers critical carbon atoms necessary to assemble purines and thymidylate, the core letters of DNA [3]. Supplying 5,000 mcg of active folate ensures rapidly reproducing tissues maintain efficient, accurate replication without nutritional bottlenecks [1].
3. Crossing the Blood-Brain Barrier (Neurotransmitter Production)
Think of the blood-brain barrier like a guarded bridge with a strict security gate. Synthetic folic acid cannot cross this barrier in an active coenzyme state, but (6S)-5-MTHF crosses directly via specialized folate transport mechanisms [2, 4]. Within central nervous tissue, active methyl folate fuels the synthesis of tetrahydrobiopterin (BH4) [4]. BH4 acts as a mandatory spark plug for producing dopamine, serotonin, and norepinephrine, supporting emotional resilience and cognitive focus [4].
Daily Timing, Synergy & Realistic Timelines
Best Time to Take & Daily Schedule
Take 1 veg capsule daily with morning breakfast. While folate dissolves in water, eating a meal triggers stomach acid and digestive enzymes that dissolve the hypromellose shell smoothly. Active methylation naturally invigorates cellular energy pathways. Taking your dose in the morning ensures alertness during the day without disrupting evening sleep.
Smart Pairings & Spacing Rules
✓Essential Co-Factor Pair (Vitamin B-12): Always pair methyl folate with active Vitamin B-12 (methylcobalamin) [1, 3]. Folate and B-12 operate in lockstep; sufficient B-12 ensures that folate transfers its methyl group rather than getting trapped in biochemical limbo [3].
✓Two-Hour Separation Window: Separate this capsule by at least 2 hours from bile acid sequestrants (such as cholestyramine) or antacid medications, which can interfere with upper intestinal absorption.
What to Expect Over Time
Days 1–7: Rapid systemic absorption. The glucosamine salt dissolves swiftly in the gut, releasing active 5-MTHF to replenish low circulating folate levels [1, 2].
Weeks 3–4: Deep tissue saturation. Red blood cell folate reserves build, optimizing homocysteine-methionine balance and assisting daily cellular turnover [1, 3].
Months 2–3+: Cumulative cellular harmony. Sustained methyl donor availability promotes steady neurotransmitter production, cardiovascular health, and DNA stability [1, 4].
Physical Feel, Sensory Traits & Clean Ingredients
Pill Format & Ease of Use
NOW® encapsulates this 5,000 mcg formula in an easy-to-swallow, size-3 vegetarian capsule. It is significantly smaller than bulky multivitamin tablets and slides down easily with a sip of water (H2O). If you prefer not to swallow capsules, you can gently pull the two halves apart and mix the fine, soluble powder into juice or applesauce.
Natural Aroma, Taste & Color
The powder inside is practically odorless and has a neutral, very mild taste. NOW adds zero artificial dyes, flavors, or masking agents. Natural raw materials may vary slightly from pure white to soft off-white or cream across manufacturing lots.
Other Ingredients Explained
✓Microcrystalline Cellulose: A natural, purified plant fiber used as a harmless filler to ensure uniform distribution of the microscopic 5-MTHF powder.
✓Hypromellose (cellulose capsule): A 100% plant-based vegetarian capsule shell derived from pine trees that dissolves rapidly in stomach fluids.
✓Stearic Acid (vegetable source): A natural plant fat that lubricates processing equipment, preventing fine nutrient powder from sticking to encapsulating machinery.
Proper Storage & Packaging
Store in a cool, dry place after opening. Reseal the cap firmly to guard against ambient humidity. The container is consciously crafted from 100% post-consumer recycled (PCR) resin, protecting your supplements while reducing plastic waste.
Manufacturer Quality & Lab Testing Standards
Commodity supplements sold by big box stores often purchase cheap raw ingredients from untracked suppliers without thorough testing. As a result, low-cost options often contain harmful contaminants, unlisted binders, and erratic potencies. NOW Foods operates two elite, private analytical testing complexes accredited under strict ISO/IEC 17025 benchmarks:
✓ ICP-MS Heavy Metal Screening (Parts-Per-Billion Accuracy)
Using Inductively Coupled Plasma Mass Spectrometry, NOW tests raw ingredients down to parts-per-billion (ppb) sensitivity. This ensures every batch is free of toxic lead, arsenic, mercury, and cadmium.
✓ HPLC Coenzyme Potency Verification
Through High-Performance Liquid Chromatography (HPLC), NOW scientists verify the precise chemical identity and optical purity of (6S)-5-MTHF. This guarantees that your capsule provides exactly 5,000 mcg of active folate through expiration.
✓ Stringent Microbial & Allergen Controls
Automated microbiological testing confirms zero presence of Salmonella, E. coli, yeasts, or environmental molds. Facilities maintain an ‘A-rating’ from the Natural Products Association (NPA) and cGMP certification from UL Solutions.
Complete Supplement Facts Panel
Supplement Facts
Serving Size: 1 Veg Capsule Servings Per Container: 50
Description
Amount per Serving
% Daily Value
Folate [5,000 mcg (6S)-5-MTHF**] [from Quatrefolic® (6S)-5-MTHF** Glucosamine Salt]
8,500 mcg DFE
2125%
** MTHF = Methyltetrahydrofolate
Other Ingredients: Microcrystalline Cellulose, Hypromellose (cellulose capsule) and Stearic Acid (vegetable source).
Allergen Statement: 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. The elderly and individuals with conditions that may impair vitamin B-12 absorption should frequently check vitamin B-12 status when taking this product as high-dose folic acid may mask vitamin B-12 deficiency. Consult physician if pregnant/nursing, taking medication (especially phenobarbital, phenytoin, primidone, and methotrexate), or have a medical condition (especially any condition involving nutrient malabsorption). Keep out of reach of children.
Made and quality tested in the USA with globally sourced ingredients. Quatrefolic® is a registered trademark of Gnosis S.p.A. and protected by U.S. Patent 7,947,662. Family owned since 1968. This bottle is made from 100% PCR (post-consumer recycled) resin.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Scientific References & Clinical Studies
Scaglione, F., & Panzavolta, G., "Folate, folic acid and 5-methyltetrahydrofolate are not the same thing," Xenobiotica, 2014. PMID: 24494987.
Miraglia, N., Agostinetto, M., Bianchi, D., & Valoti, E., "Enhanced oral bioavailability of a novel salt of (6S)-5-methyltetrahydrofolic acid," Minerva Ginecologica, 2016. PMID: 27008240.
Selhub, J., "Public health significance of elevated homocysteine," Food and Nutrition Bulletin, 2008. PMID: 18561703.
Stahl, S. M., "L-methylfolate: a promising therapy for depression," CNS Spectrums, 2008. PMID: 18451758.
Frequently Asked Questions
1. Why would I need 5,000 mcg of methyl folate instead of a lower 1,000 mcg dose?
A 5,000 mcg dosage is formulated for individuals requiring intensive methylation support or addressing significant metabolic hurdles [1]. Those with compound heterozygous or homozygous MTHFR gene variations often need higher concentrations of active 5-MTHF to effectively fuel the one-carbon cycle and cross the blood-brain barrier [1, 4].
2. Can I open this vegetarian capsule and mix the powder into a beverage?
Yes. The hypromellose vegetable capsule can be pulled apart effortlessly. Because Quatrefolic® is highly water-soluble, the enclosed powder mixes readily into room-temperature water, smoothies, or unsweetened applesauce without losing stability [2]. Avoid mixing into boiling liquids.
3. Why should I monitor my Vitamin B-12 levels while taking high-dose methyl folate?
High-dose folate can normalize red blood cell size even if Vitamin B-12 is low, masking signs of an underlying deficiency [3]. Folate and B-12 work as biochemical partners in homocysteine metabolism [1, 3]. Pairing methyl folate with an active Vitamin B-12 supplement ensures balanced methylation pathways and protects neurological health [3, 4].
4. Does taking this high-potency capsule break an intermittent fast?
No. One capsule contains near-zero caloric value and will not trigger an insulin surge or halt autophagy. However, because methyl folate supports cellular energy pathways and absorbs best with digestive activity, taking it alongside your morning meal is ideal.
5. What does 8,500 mcg DFE mean on the Supplement Facts label?
DFE stands for Dietary Folate Equivalents. It reflects the superior bioavailability of purified, active folate compared to food-based forms. A single 5,000 mcg dose of bioactive (6S)-5-MTHF yields 8,500 mcg DFE, delivering 2,125% of the daily nutritional reference value.