NOW Foods BCAA BLAST in Tropical Punch delivers a generous 6g dose of branched-chain amino acids (leucine, isoleucine, and valine) in the research-validated 2:1:1 ratio per serving, in a delicious tropical punch flavored powder. BCAAs are the only amino acids metabolized directly in muscle tissue rather than the liver, making them immediately available as fuel during intense exercise and as building blocks for muscle protein synthesis afterward. Leucine in particular is the primary trigger for muscle protein synthesis signaling (mTOR pathway). BCAA BLAST is ideal for intra-workout hydration and amino acid delivery, reducing exercise-induced muscle breakdown, and supporting faster recovery between training sessions. NOW Foods uses pharmaceutical-grade BCAAs with no artificial colors and manufactures in their GMP-certified facility with full batch testing. Sweetened with natural flavors for a refreshing, clean-tasting workout drink.