WHAT IS L-ARGININE? L-Arginine is a pure, free-form amino acid that is ready to be absorbed by the body. It is increasingly popular with athletes, bodybuilders and individuals following exercise regimes that are designed to turn fat into muscle. OUR L-ARGININE SUPPLEMENT BLEND Our L-Arginine amino acid supplement provides 500mg of pure, free-form amino acid that is ready to be absorbed by the body without needing to be broken down by digestive enzymes. EXCIPIENT FREE Our L-Arginine supplement comes in the form of a vegetable cellulose capsule. This enables us to offer a supplement that does not require excipients, binders or unnatural fillers. A vegetable cellulose capsule is designed specifically to break down naturally within the acid of your stomach, ensuring that the nutrients are absorbed during digestion.