• Supports muscle protein retention, fat mobilization, lean tissue development, efficient metabolism, and overall body tissue toning. Arginine, ornithine and tyrosine are important components of efficient metabolism. Arginine is essential for the production of nitric oxide, which supports the body's metabolic processes by relaxing blood vessels and aiding blood flow.* GNLD chose Bio-Tone's combination of amino acids for their involvement in the body's metabolic processes (including lipid mobilization) and added a Special Blend with lipotropic factors choline and inositol to help balance fat utilization.* Complete formula containing L-arginine HCl, L-ornithine, L-tyrosine, plus our own Special Factors Blend with lipotropic factors choline and inositol. Supports the body's metabolic processes, like muscle protein retention, fat mobilization, lean tissue development, efficient metabolism, and overall body tissue toning.* Rapid absorption and utilization from 100% natural, free-form amino acids. Works in-sync with body's natural cycles: Timed dose, taken at bedtime, utilizes regular nightly fluctuations of amino acid blood levels. * These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.