L-Citrulline 1200mg - 120 Tablets

Product Overview & Quick Specs

Think of your blood vessels like flexible garden hoses that need to stay relaxed. When they stay open, nutrient-rich blood moves freely to your working muscles and vital organs. NOW Foods L-Citrulline 1200 mg Extra Strength delivers a pure, free-form amino acid that fuels your body's natural nitric oxide engine. Each high-potency tablet provides concentrated circulatory support, physical stamina, and cellular waste clearance in a single daily dose.

• ✓ Active Form & Potency: Delivers a potent 1.2 g (1,200 mg) of pure, free-form L-Citrulline in every single tablet.
• ✓ Primary Target: Fuels systemic nitric oxide synthesis, promotes vascular elasticity, and accelerates urea cycle waste removal.
• ✓ Supply & Value: 120 extra-strength tablets provide up to a 4-month daily supply, cutting down your daily pill count.
• ✓ Purity & Dietary Status: Non-GMO, vegan-coated, and verified free of gluten, soy, dairy, nuts, and artificial additives.

Buyer's Guide & Form Comparison

Many discount pre-workout supplements use "citrulline malate" blends. Those blends bond citrulline with malic acid, meaning you often receive only 50% to 67% actual citrulline by weight. Standard citrulline capsules usually stop at 750 mg, requiring you to swallow multiple pills every day. NOW Foods L-Citrulline 1200 mg delivers 100% pure free-form amino acid in a high-density tablet without acidic fillers. Cheap commodity brands found in big-box stores often hide synthetic binders and industrial impurities. NOW Foods tests every batch for pure potency and presses each tablet with clean, plant-based excipients.

Best Choice For:

• ✓ Athletes and weightlifters seeking stimulant-free muscle pumps, sustained aerobic endurance, and faster recovery.
• ✓ Adults looking to promote arterial flexibility, healthy systemic blood flow, and normal blood pressure levels.
• ✓ Anyone who wants to minimize their daily pill count with an extra-strength 1,200 mg single-tablet serving.

Consider Another Option If:

• ✗ You have severe difficulty swallowing solid tablets and prefer stirring unflavored, free-form powder into juice.
• ✗ You are currently taking prescription nitrates or blood pressure drugs and have not yet consulted your physician.
• ✗ You want an immediate sensory buzz or tingling sensation from added stimulants like caffeine or beta-alanine.

VitaNet®, LLC has served health-conscious shoppers since 1995 with 31+ years of supplement curation, backing your purchase with an unconditional 100% money-back guarantee—even on opened bottles.

How It Works in the Body

Think of ordinary oral arginine like an express package stopped at a border checkpoint. When you swallow regular arginine, enzymes in your gut and liver destroy over half of it before it reaches your circulation (first-pass hepatic metabolism) [1]. In contrast, think of L-Citrulline like a package carrying an all-access clearance pass. It slips right past your liver enzymes completely unharmed and enters your bloodstream intact [1].

Think of your kidneys like a specialized manufacturing plant. Once inside the kidneys, two key enzymes (argininosuccinate synthetase and argininosuccinate lyase) smoothly convert L-citrulline into fresh L-arginine [2]. This process creates higher, longer-lasting blood levels of arginine than swallowing arginine pills directly [1]. Your vascular lining (endothelium) uses this steady supply to generate nitric oxide gas [1]. Nitric oxide tells arterial walls to relax (vasodilation) [1]. This biological widening expands blood vessel pathways and improves oxygen delivery to hard-working muscle tissues [3].

Now picture intense exercise like running an engine at maximum speed. Heavy muscular contractions produce cellular exhaust in the form of metabolic ammonia (NH₃) [4]. When ammonia accumulates, muscles burn and fatigue quickly [4]. L-Citrulline functions as an essential gear in your liver's waste treatment facility (the urea cycle) [2]. It binds with waste compounds to convert harmful ammonia into harmless urea [2]. Your kidneys then safely flush this urea out through your urine, helping your muscle tissues recover smoothly [2, 4].

Daily Timing, Synergy & Realistic Timelines

Best Time to Take: Think of your intestinal wall like a narrow doorway. If you take free-form amino acids with heavy protein meals, thousands of dietary protein fragments crowd the door (carrier transporter competition). For the fastest absorption, take your tablet on an empty stomach with a full 8 ounces of water or fruit juice, roughly 30 to 45 minutes before meals or physical training.

Daily Schedule: Take 1 tablet 1 to 2 times daily. For exercise support, take 1 tablet 45 to 60 minutes before training. On non-training days or for cardiovascular wellness, take 1 tablet first thing in the morning, and an optional second tablet in the afternoon between meals.

Smart Pairings & Spacing: You can pair L-Citrulline with Vitamin C or Glutathione to shield nitric oxide from breakdown. You can also stack it with Creatine Monohydrate to support cellular energy during heavy lifting. Maintain a 2-hour separation window from whole-food protein shakes or dairy meals to prevent intestinal transport competition.

What to Expect Over Time:

• Days 1–7: Rapid cellular uptake begins. You may notice fuller muscle pumps during training and smoother workout stamina without digestive heaviness.
• Weeks 3–4: Consistent tissue saturation occurs. Circulating arginine levels reach steady equilibrium, supporting efficient waste removal, reduced post-exercise soreness, and peripheral vascular warmth.
• Months 2–3+: Long-term cardiovascular maintenance. Cumulative nitric oxide production promotes sustained arterial elasticity, healthy blood vessel tone, and overall circulatory health.

Physical Feel, Sensory Traits & Clean Ingredients

Pill Format & Ease of Use: Each tablet is an elongated oval measuring approximately 7/8 inch in length. It features a slippery vegetarian coating that glides easily down your throat when taken with water. If you have trouble swallowing large pills, you can cleanly snap the tablet in half along its center score or crush it into applesauce.

Natural Aroma, Taste & Color: The tablet has a clean, neutral scent with no artificial perfumes. Because it is sealed inside a plant coating, it has zero bitter or chalky taste. The tablets are off-white with minor speckling. Natural color variation is completely normal and reflects natural raw-material sourcing.

Other Ingredients Explained:

• Microcrystalline Cellulose: Natural plant fiber that creates the solid, firm shape of the tablet.
• Stearic Acid (vegetable source): Clean plant fat that lubricates processing equipment for clean tablet pressing.
• Vegetarian Coating: A plant-based shell of hypromellose, vegetable stearic acid, sunflower lecithin, triethyl citrate, and sunflower oil that makes the tablet slick and easy to swallow.
• Croscarmellose Sodium: Plant-derived disintegrant that expands in the presence of water, helping the tablet dissolve rapidly in the stomach.
• Silicon Dioxide: Natural mineral compound that absorbs moisture and prevents fine powder from clumping.

Proper Storage: Store in a cool, dry, dark pantry or cabinet after opening. Keep the lid tightly sealed to protect the amino acid from air and moisture. This bottle is made from 100% PCR (post-consumer recycled) resin to shield the nutrients while reducing environmental plastic waste.

Manufacturer Quality & Lab Testing Standards

Many commodity supplement brands sold at big-box discount retailers purchase raw amino acids through unverified brokers. Those bargain bottles frequently suffer from synthetic degradation, unlisted fillers, and heavy metal residues. NOW Foods takes an entirely different scientific approach. They run one of the largest private analytical testing laboratories in the supplement industry, performing over 19,000 analytical tests every month.

• Heavy Metal Screening (ICP-MS): Inductively Coupled Plasma Mass Spectrometry checks every batch for lead, arsenic, cadmium, and mercury down to parts-per-billion, meeting safety limits stricter than California Proposition 65.
• Active Potency Testing (HPLC): High-Performance Liquid Chromatography confirms that each tablet delivers 100% of the active, biologically pure L-enantiomer citrulline without chemical diluents.
• Molecular Fingerprinting (FTIR): Fourier Transform Infrared Spectroscopy screens incoming materials against pure standards to prevent counterfeit or degraded ingredients from entering production.
• Microbiological Safety: Automated testing verifies the absolute absence of harmful pathogens, including Salmonella, E. coli, and Staphylococcus aureus.

NOW Foods manufacturing facilities maintain continuous Underwriters Laboratories (UL) cGMP registration and hold ISO/IEC 17025 accreditation for laboratory excellence, protecting your health with verified analytical purity.

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