* Supports Muscle Protein Synthesis * 2:1:1 "Muscle Ratio" * UltraPure-Unflavored * Dietary Supplement * Informed Choice - Trusted by Sport * Your Ambition. Our Nutrition Dymatize BCAA Complex 5050 provides over 5 grams of the highest quality source of free form Branched Chain Amino Acids (BCAA), namely L-Leucine, L-Isoleucine and L-Valine. BCAAs are important essential amino acids that support optimal muscle protein synthesis (MPS) after serious training and during extended recovery. Dymatize BCAA Complex 5050 delivers L-Leucine, L-Isoleucine and L-Valine in a 2:1:1 ratio which is the same as in skeletal muscle and is ultra pure powder. Dymatize products are used and trusted by athletes worldwide for their exceptional quality and because they are university proven and tested for banned substances by Informed Choice.