Fissions Nutrition’s Amino Sustain are Branch Chain Amino acids (BCAAs)4.1.1 and Essential Amino Acids (EAAs) and are a food supplement combination of L-Leucine, L-Isoluecine, L Valine & EAAs. Essential Amino Acids (EAAs) cannot be synthesized by the body so must be consumed. They also play a role in muscle growth. Amino Sustain help assist the body build new muscle cells thus aiding muscle regeneration and helping reduce fatigue. Taking this supplement before training can help ensure you receive enough EAAs & BCAAs to meet your requirements needed for complete protein synthesis. Your workouts will become more productive as your muscles will get the optimum repair they need.