Protein Metabolism* Nitric Oxide Precursor* Arginine and citrulline are two amino acids that are integral to protein metabolism and utilization, as well as to the maintenance of muscle tissue.* Both are key intermediates in the urea cycle, where they participate in the detoxification of ammonia via the production of urea.* In addition, any arginine not converted to urea enters general circulation where it is distributed to various tissues and metabolized for other uses such as protein synthesis.* Natural color variation may occur in this product.

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    PROTEIN METABOLISM*: Arginine and citrulline are two amino acids that are integral to protein metabolism and utilization, as well as to the maintenance of muscle tissue.*
    NITRIC OXIDE PRECUSOR*/PRE-WORKOUT SUPPLEMENT: Take one capsule up to twice a day, preferably before working out.
    GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
    Packaged in the USA by a family owned and operated company since 1968.

Container size: 120 veg capsules
Serving size: 1 veg capsule

Amount per Serving / Daily Value ** Daily Value not established.
L-Arginine (Free-Form) 500 mg **
L-Citrulline (Free-Form) 250 mg **
** Daily Value not established.

Other Ingredients: Hypromellose (cellulose capsule), Silicon Dioxide, Stearic Acid (vegetable source), Calcium Citrate and Microcrystalline Cellulose.

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

Suggested Usage: Take 1 capsule 2 times daily Store in a cool, dry, dark place after opening.

Warnings
For adults only. Consult physician if pregnant/nursing, taking medication (especially antihypertensives, nitrates, or other heart medications), or have a medical condition (especially herpes, kidney impairment and/or glaucoma). Keep out of reach of children.