Source Naturals Free-Form L-Arginine, 3.53 oz. (100 Grams) Powder
L-Arginine by Source Naturals
- Price
- $9.98
What the brand says
l-Arginine is a crystalline free-form amino acid. It is an important factor in muscle metabolism and works to transport, store, and excrete nitrogen. It is also a precursor of guanidine-phosphate, phosphoarginine, and creatine, which are high-energy compounds found in muscles.*