Citrulline is a non-essential amino acid that is an important intermediate in the urea cycle, functioning along with other amino acids to rid the body of ammonia, a by-product of protein metabolism.* Citrulline also plays an...

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Citrulline is a non-essential amino acid that is an important intermediate in the urea cycle, functioning along with other amino acids to rid the body of ammonia, a by-product of protein metabolism.* Citrulline also plays an important role in the healing process and in the maintenance of a healthy immune system.* This extra strength product has more L-Citrulline (1,200 mg per tablet) than our regular strength product (750 mg per capsule). Natural color variation may occur in this product.

  • EXTRA STRENGTH: This extra strength NOW Sports product has more citrulline (1,200 mg per tablet) than our regular strength product (750 mg per capsule)
  • NITRIC OXIDE PROMOTER*: Citrulline is a non-essential amino acid that is an important intermediate in the urea cycle functioning along with other amino acids to rid the body of ammonia which is a by-product of protein metabolism*
  • SUPPORTS HEALTHY IMMUNE SYSTEM*: Citrulline also plays an important role in the healing process and in the maintenance of a healthy immune system*
  • 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

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