Free USA Shipping Over $99
Free USA Shipping Over $99
Skip to content

Now Foods Arginine 500mg Citrulline 250mg 120 Capsules

$17.99

Now Foods Arginine 500 Mg Citrulline 250 Mg 120 Capsules

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. Arginine that has not been converted to urea enters general circulation where it is distributed to various tissues and metabolized for other uses such as protein synthesis. Scientific studies have shown that supplementing Citrulline along with Arginine helps maintain nitrogen balance better than supplementation with Arginine alone.

Now Foods Arginine & Citrulline Product Benefits

  • Sports
  • Supports Protein Metabolism
  • Helps Maintain Muscle Tissue
  • GMP Quality Assured
  • A Dietary Supplement

Directions

As a dietary supplement, take 2 capsules 1 to 3 times daily as needed, preferably with juice or water on an empty stomach, before exercise or at bedtime. Consider taking this product in combination with NOW L-Norvaline, P-5-P and AAKG.

Now Foods Arginine & Citrulline 120 Capsules

Serving Size: 1 Capsule

Servings Per Container: 120

L-Arginine (Free-Form) 500mg

L-Citrulline (Free-Form) 250mg

*Daily Value Not Established

Other Ingredients: Hypromellose (cellulose capsule), silicon dioxide, stearic acid (vegetable source), magnesium stearate (vegetable source) and microcrystalline cellulose.

Warnings

Store in a cool dry dry place after opening.

References

Viribay A, Burgos J, Fernández-Landa J, Seco-Calvo J, Mielgo-Ayuso J. Effects of Arginine Supplementation on Athletic Performance Based on Energy Metabolism: A Systematic Review and Meta-Analysis. Nutrients. 2020;12(5):1300. Published 2020 May 2. doi:10.3390/nu12051300

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7282262/

McRae MP. Therapeutic Benefits of l-Arginine: An Umbrella Review of Meta-analyses. J Chiropr Med. 2016;15(3):184-189. doi:10.1016/j.jcm.2016.06.002

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5021928/

Blog posts

February 16, 2026 admin

What is ACP-105?

Is ACP-105 The Ultimate Recomp SARM? ACP-105 is a Selective Androgen Receptor Modulator or SARM. It was originally developed by Acadia Pharmaceuticals to help treat degenerative conditions like osteoporosis and muscle wasting. Unlike older performance enhancers ACP-105 was designed to...

Read now