Applied Nutrition BCAA Amino Hydrate is a supplement designed to support intense workouts and aid in post-workout recovery. It's a sugar-free, intra-workout and recovery drink mix containing a 2:1:1 ratio of branched-chain amino acids (BCAAs), electrolytes, and citrulline. The BCAAs (Leucine, Isoleucine, and Valine) help reduce muscle breakdown and promote muscle repair. The added electrolytes help with hydration and the citrulline supports an intra-workout pump.