UPC: 733739000651
# N0065

NOW Foods Carnitine Liquid 2X (1,000 mg, Citrus, 16 fl oz) – High-Potency Cellular Fuel

NOW Carnitine Liquid 2X delivers 1,000 mg of pure, pharmaceutical-grade L-Carnitine per single tablespoon serving. Formulated with clinically validated Carnipure® from Lonza, this fast-acting liquid bypasses the digestive breakdown required by standard dry tablets or capsules. Because it is already fully dissolved in a pleasant natural citrus base, your body can absorb and utilize it rapidly before workouts or daily physical activity.

Whether your fitness goal is maximizing fat utilization during aerobic exercise, accelerating muscle bounce-back after resistance training, or supporting healthy cellular energy as you age, this double-strength formula provides non-stimulant fuel directly to your working cells without artificial colorings or added sugars.

  • ✓ 1,000 mg Active Free-Form L-Carnitine: Made exclusively with genuine, non-animal sourced Carnipure® base.
  • ✓ Enhanced with Synergistic B-Vitamins: Fortified with Vitamin B-6 and Pantothenic Acid (Vitamin B-5) to complete the cellular fat-processing cycle.
  • ✓ Zero Synthetic D-Carnitine: Verified 100% pure L-isomer to prevent receptor competition.
  • ✓ Clean Formulation: Naturally flavored with lemon oil, sweetened lightly with leaf stevia, vegan, and free of wheat, gluten, soy, dairy, egg, and shellfish.

How L-Carnitine Works: The Cellular "Fuel Shuttle" Explained in Plain English

To understand what L-Carnitine does, think of your cells as miniature factories and your mitochondria as the furnaces that burn fuel to produce energy (adenosine triphosphate, or ATP). The premium fuels your body stores in largest supply are long-chain fatty acids. However, long-chain fatty acids have a physical barrier: they are completely incapable of crossing the dense inner membrane of the furnace on their own.

L-Carnitine serves as the specialized delivery shuttle. It binds to fatty acids in your cell fluid through an enzyme gate called Carnitine Palmitoyltransferase-1 (CPT-1), transforms them into acylcarnitine, and carries them across into the mitochondrial furnace where they are broken down through beta-oxidation. Once the fuel is safely inside the furnace, carnitine picks up leftover metabolic ash (short-chain waste byproducts) and shuttles them back out, keeping your cellular engine running cleanly.

Why B-6 and Pantothenic Acid Complete the Equation

Burning fatty acids requires an essential biochemical partner called Coenzyme A (CoA). Pantothenic Acid (Vitamin B-5) is the direct molecular building block of Coenzyme A. Without adequate B-5, the carnitine shuttle cannot complete its handoff inside the mitochondrial matrix. Vitamin B-6 acts as the necessary enzymatic cofactor that governs amino acid transport and cellular uptake. By combining active L-Carnitine with Vitamin B-6 (118% DV) and Pantothenic Acid (200% DV), NOW Carnitine Liquid 2X ensures every stage of the cellular energy pipeline has its essential nutrients.

Authoritative Scientific Research & Clinical Evidence

The benefits of supplemental L-Carnitine are documented across extensive peer-reviewed sports physiology and metabolic literature:

  • Post-Exercise Muscle Recovery & Tissue Protection: In landmark human clinical trials led by Dr. William J. Kraemer and Dr. Jeff S. Volek, oral supplementation with L-Carnitine (Carnipure®) significantly attenuated structural muscle damage after high-intensity resistance training. Serum biomarkers for cellular breakdown, including creatine kinase (CK) and myoglobin, dropped significantly compared to placebo, while post-workout tissue oxygenation improved markedly (Am J Physiol Endocrinol Metab, 2002;282(2):E474-E482; Metabolism, 2010;59(8):1190-1199).
  • Muscle Fuel Selection & Glycogen Sparing: Clinical research conducted at the University of Nottingham demonstrated that elevating skeletal muscle carnitine reserves alters energy metabolism during sustained exercise. Athletes using carnitine burned more fat at moderate training intensities, sparing finite glycogen reserves for late-session stamina, while decreasing muscle lactate accumulation by 44% during high-intensity output (J Physiol, 2011;589(4):963-973).
  • Oxidative Stress Reduction: Systematic reviews examining L-carnitine administration have verified reductions in circulating markers of exercise-induced oxidative stress, including malondialdehyde (MDA), while enhancing natural superoxide dismutase (SOD) defense pathways in active muscle tissue (Nutrients, 2018;10(3):349; Nutrients, 2021;13(10):3432).

Complete Supplement Facts & Manufacturing Ingredient Profile

Formulated strictly with globally authenticated ingredients, tested in the USA, and bottled in 100% post-consumer recycled (PCR) resin packaging.

Supplement Facts Amount Per Serving % Daily Value
Serving Size: 1 Tablespoon (15 mL) Servings Per Container: About 32
Calories 15 —
Total Carbohydrate 4 g 1%*
Vitamin B-6 (from Pyridoxine Hydrochloride) 2 mg 118%
Pantothenic Acid (from Calcium Pantothenate) 10 mg 200%
L-Carnitine (Carnipure®) (Free-Form Base) 1,000 mg (1 g) †
Stevia Extract (Leaf) 16 mg †

* Percent Daily Values are based on a 2,000-calorie diet.
† Daily Value not established.

Other Ingredients: De-ionized Water, Vegetable Glycerin, L-Malic Acid, Citric Acid, Natural Flavors, Potassium Sorbate (as food-grade preservative), and Lemon (Citrus limon) Peel Oil.

Allergen Free & Clean Manufacturing: Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut, or sesame ingredients. Produced in a third-party certified Current Good Manufacturing Practices (cGMP) facility that handles other products containing these allergens.

Trademark Disclosure: Carnipure® is a registered trademark of Lonza Ltd., Switzerland, designating high-purity, non-animal sourced L-Carnitine. Item SKU: N0065 | UPC: 733739000651.

NOW Foods Quality Standards: Rigorous Testing & Contaminant Verification

When purchasing amino acids and liquid dietary supplements, purity is critical. Many generic imported carnitine products contain chemical residues or inactive isomeric forms. NOW Foods operates one of the most advanced analytical private testing complexes in the dietary supplement industry, conducting over 19,000 separate quality tests each month across raw ingredients and finished goods.

Advanced Analytical Instrument Safeguards

  • Parts-Per-Billion Heavy Metal Screening (ICP-MS): Utilizing Inductively Coupled Plasma Mass Spectrometry (ICP-MS), NOW tests every production lot for toxic heavy metals—including elemental lead, arsenic, cadmium, and mercury—detecting minute traces down to parts-per-billion (ppb). Finished lots must meet purity constraints that are significantly stricter than standard federal guidelines.
  • High-Performance Liquid Chromatography (HPLC) & Optical Isomer Purity: L-Carnitine exists in two optical mirror images: active L-Carnitine and synthetic D-Carnitine. Synthetic D-carnitine is biologically harmful because it blocks cellular carnitine uptake. NOW verifies using HPLC and polarimetry that every bottle contains 100% pure L-Carnitine base with zero detectable D-isomers.
  • Triple-Quadrupole Mass Spectrometry (LC-MS/MS & GC-MS/MS): Advanced liquid and gas chromatography screen raw botanical inputs and processing aids against hundreds of agricultural pesticides, micro-contaminants, and residual solvent residues.
  • Microbiological Safety: Every liquid production run undergoes exhaustive screening in NOW's ISO/IEC 17025-accredited microbiology laboratories to ensure complete absence of pathogens, including Escherichia coli, Salmonella species, and Staphylococcus aureus, alongside strict limits on yeasts and molds.
  • Informed-Sport & Intertek GMP Certified: The production process is certified annually by Intertek for cGMP adherence and tested under Informed-Sport protocols, confirming that products are screened for banned athletic substances and steroids.

Optimal Usage Instructions, Timing & Clinical Precautions

Suggested Daily Usage

Shake well before each use. Take 1 tablespoon (15 mL) daily. Because L-Carnitine relies on intestinal transport proteins that absorb free amino acids most efficiently when not competing with dietary protein, it is best taken on an empty stomach:

  • On Training Days: Consume 1 tablespoon 30 to 45 minutes prior to aerobic exercise or weight training to support blood carnitine levels during physical exertion.
  • On Non-Training Days: Take 1 tablespoon in the morning upon waking, approximately 20 minutes before breakfast.
  • Post-Opening Storage: Store in a cool, dry, dark pantry or refrigerate after opening to preserve the natural citrus flavoring and antioxidant integrity.

Important Health Precautions & Drug Interactions

This dietary supplement is intended for adults only. Consult your qualified healthcare provider prior to use if you are pregnant, nursing, or managing existing medical conditions.

  • Thyroid Considerations: Peer-reviewed endocrinology research shows that L-Carnitine acts as a natural peripheral antagonist to thyroid hormones by inhibiting the nuclear entry of triiodothyronine (T3) and thyroxine (T4) into cells (J Clin Endocrinol Metab, 2001;86(8):3579-3594). While this property is studied for managing symptoms of elevated thyroid hormone, individuals diagnosed with hypothyroidism or those taking thyroid replacement therapies (such as levothyroxine) should avoid supplemental carnitine unless advised by their endocrinologist.
  • Blood-Thinning Medications: Individuals taking prescription anticoagulants or antiplatelet drugs (such as warfarin) should consult their physician, as amino acid therapies may alter coagulation parameters.
  • Seizure Disorders: High supplemental doses of carnitine have been reported to lower the seizure threshold in susceptible individuals with pre-existing seizure histories.

Why Order NOW Carnitine Liquid 2X From VitaNet®, LLC?

At VitaNet®, LLC, we are an independent, family-owned nutritional wellness business operating out of Hartville, Ohio[cite: 1]. Since 1995, our hands-on mission has remained simple: provide verified, genuine name-brand vitamins and sports supplements at honest discount prices, backed by personal customer care[cite: 1].

  • ✓ 31+ Years of Hands-On Industry Expertise: With over three decades of direct experience in dietary supplements, we source our inventory directly from authorized manufacturer channels[cite: 1]. You never risk receiving counterfeit, heat-damaged, or expired inventory commonly found on unregulated third-party marketplaces.
  • ✓ Direct Volume Discount Pricing: We pass our volume purchasing discounts straight to your cart, offering NOW Foods liquid amino acids at everyday savings up to 45% below suggested retail[cite: 1].
  • ✓ Unconditional 100% Money-Back Guarantee (We Pay Return Shipping): Every item is backed by our full money-back guarantee[cite: 1]. If you are unsatisfied with your product for any reason, we refund 100% of your purchase price and pay the return shipping costs—even on opened bottles[cite: 1].
  • ✓ BBB A+ Accredited Independent Business: Real people answer our phones during business hours at our physical location (887 Edison St NW, Hartville, OH)[cite: 1]. Have questions about an order or formula? Call our team toll-free at 1-800-877-8702[cite: 1].

Frequently Asked Questions (FAQ)

1. Why choose liquid L-Carnitine over capsules or tablets?

Liquid L-Carnitine is already dissolved, which means your digestive tract does not have to spend time disintegrating outer capsule shells or compressed binders. Liquid delivery allows for faster gastrointestinal transit and swifter systemic absorption, making it the preferred delivery method 30 to 45 minutes before a workout. Additionally, a single tablespoon delivers 1,000 mg of active carnitine, replacing the need to swallow two to four bulky capsules.

2. What makes Carnipure® carnitine different from generic L-Carnitine?

Carnipure® is a pharmaceutical-grade, pure crystalline L-Carnitine produced by Swiss manufacturer Lonza. Unlike generic bulk amino acids that can be contaminated with biologically inactive or synthetic D-Carnitine isomers, Carnipure® is guaranteed 100% natural L-form, free from animal byproducts, and is the exact raw material tested in landmark human clinical recovery trials.

3. When is the best time to take NOW Carnitine Liquid 2X?

For fitness performance and fat metabolism, the optimal timing is 30 to 45 minutes prior to aerobic exercise or resistance training on an empty stomach. On non-workout days, take 1 tablespoon first thing in the morning roughly 15 to 20 minutes before breakfast.

4. Why are Vitamin B-6 and Pantothenic Acid added to this formula?

Pantothenic Acid (Vitamin B-5) is the core nutritional precursor needed to synthesize Coenzyme A (CoA). When carnitine shuttles fatty acids into your mitochondria, Coenzyme A must be present to accept them and start the calorie-burning cycle. Vitamin B-6 supports amino acid enzymatic reactions. Adding both vitamins ensures your cellular metabolism functions without biochemical bottlenecks.

5. Does NOW Carnitine Liquid need to be refrigerated?

While refrigeration is not strictly mandatory, storing the bottle in a cool, dry, dark cupboard or your refrigerator after opening helps protect the natural lemon oil flavoring and maintains optimal potency throughout the full 32 servings.

6. Can I take L-Carnitine if I take thyroid medication?

If you take thyroid hormone replacement drugs (such as levothyroxine) or have hypothyroidism, you should consult your doctor before using L-Carnitine. Clinical studies indicate that carnitine can block thyroid hormone entry into cell nuclei, which may interfere with your prescribed hormone levels.

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