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NOW L-Citrulline, 113g
NOW L-Citrulline, 90 veg. capsules bottle

NOW - L-Citrulline

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Info: Available as a 113 gram Powder or in 90 Capsules

L-Citrulline is a naturally occurring amino acid which has several important roles particularly relevant to those engaged in weight training and other high intensity athletics. 

Product Notes:

L-Citrulline helps support the formation of creatine, an important factor in muscle energy and body composition. It also facilitates protein synthesis, which helps retain muscle tissue and maintain a healthy protein balance. As a precursor of Arginine, L-Citrulline can also help cardiovascular function, aiding in production of Nitric Oxide (NO), which plays a fundamental role in vascular function and blood flow.

L-Citrulline works with both Arginine and Ornithine to form urea in the liver, which is essential for removing the toxic protein metabolites which get produced when you burn energy while exercising; this can help buffer lactic acid levels and reduce muscle fatigue.

It is available in fixed dose capsules, or in powder form, which enables more flexible dosing and can be added to health or protein shakes.

Supporting Science:

- Bendahan, D., Mattei, J. P., Ghattas, B., Confort-Gouny, S., Le Guern, M. E., and Cozzone, P. J. "Citrulline/malate promotes aerobic energy production in human exercising muscle." Br.J Sports Med 2002;36(4):282-89.

- Schwedhelm, E., Maas, R., Freese, R., Jung, D., Lukacs, Z., Jambrecina, A, Spickler, W., Schulze, F., Boeger, R.H. "Pharmacokinetic and pharmacodynamic properties of oral L-citruline and L-arginine: impact on nitric oxide metabolism." Br J Clin Pharmacol. 2007. 65:1, 51-59.


Pure Powder (NPN 80057849) - each half level teaspoon contains: 1500 mg L-Citrulline

Capsules (NPN 80046567): each capsule contains: 750 mg L-Citrulline

Other Ingredients: Capsule (gelatin, water), Calcium Carbonate, Magnesium Oxide and Magnesium Stearate (vegetable source).

Suggested Usage:

Adults: Take either half a teaspoon of powder or 2 veg. capsules, two times daily, between meals.


Do not use if you are pregnant or breastfeeding, or if you have had a myocardial infarction (heart attack). Consult a health care practitioner prior to use if you are on a low-protein diet, if you have kidney, liver or cardiovascular disease, or if you are taking medications for any of these diseases.


Product Options:
113 g Pure Powder - $22.99 - UPC: 733739802149
90 Veg. Capsules - $34.99 - UPC: 733739800831