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Life Extension® Arginine Ornithine Powder provides 2.25 g L‑Arginine hydrochloride and 0.75 g L‑Ornithine hydrochloride per 3.1 g level teaspoon serving. Non‑GMO, gluten‑free powder designed for adults seeking support for muscle recovery, nitrogen metabolism, and endothelial function. Mix with water or juice on an empty stomach.