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.*
- Same trusted quality with a brand new look! Packaging may vary
- 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 PRECURSOR*/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.
SUGGESTED USAGE: Take 1 capsule 2 times daily.
Caution: 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.
Recommended Uses: Bodybuilding, Fitness Nutrition, Lean Muscle
Shop by Deal 
Shipped today? Order within:
30-day money back guarantee
