PVL 100% Pure BCAAs provide you with high-quality Branched Chain Amino Acids to help provide muscle building support and also protect against muscle being used as fuel. L-Leucine, L-Valine, and L-Isoleucine are directly linked to muscle protein synthesis. Taking BCAAs before, during, and after your training helps prevent muscle loss and improves muscle recovery. Tested 100% to USP pharmaceutical standards for safety, purity, and efficacy, our BCAAs are vegetarian sourced of the highest quality. They are micronized for faster and better absorption.