Arginine is an indispensable amino acid necessary for urea processing, DNA building, and protein manufacturing.* It is also a source of nitric oxide (NO) which helps promote healthy blood-vessel widening.*
This product has twice the L-Arginine (1,000 mg per tablet) as in NOW's regular strength product (500 mg per capsule).

The L-Arginine used in this product is pharmaceutical grade.

Natural color variation may occur in this product.

• Conditionally Essential Amino Acid
• Nitric Oxide Precursor*