Reflex nutrition bcaa intra fusion powder is one of the best intra workout supplements available it has been formulated with top ingredientsr reflex nutrition bcaa intra fusion has been designed to assist protein synthesis and glycogen metabolism whilst delivering key amino acidsr reflex nutrition bcaa intra fusion delivers 134g of protein and 10g essential bcaas these include leucine isoleucine and valine bcaas are designed to help protect your muscles from catabolic effect reducing