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Performance & Recovery SupportArtificially FlavoredDietary Supplement5 g BCAAs2:1:1 RatioR1 Quality GuaranteeBranched chain amino acids help fuel muscle performance and protein synthesis during and after workouts.R1 Foundation Series Use R1 Foundation Series as part of your daily 'stack ' or easily combine them with other Rule 1 products to create customized formulations based on your personal goals. Commitment to Quality We develop our own products source the finest ingredients and manufacture them in an FDA-inspected GMP-compliant and banned substance tested facility.