Build Muscle • Burn Fat • Recover Faster 3500 mg L-Leurine for Muslce Protein Synthesis 7000 mg BCAAs Over 4600 mg of L-Glutamine, Citrulline Malate & Electrolyes Zero Sugar or Carbs Scivation Xtend™ the most advanced sugar and carbohydrate-free Intra-Workout Catalyst, scientifically formulated to maximize training intensity and promote optimal muscle protein synthesis and recovery while you train. Xtend™ is formulated with a precise PentActive blend of actives, synergistically involved in key cellular processes to optimize muscle performance and response. 1) Research validated 2:1:1 ratio of the branched chain amino acids (BCAAs, L-Leucine and L-Valine to stimulate and support muscle protein synthesis and provide metabolic energy while you train 2) Glutamine to promote muscle intracellular BCAA metabolism down the correct energy and protein synthesis pathways via the BCAA aminotransferase enzyme. 3) The rate-limiting cofactor Vitamin B6 to ensure optimal BCAA aminotransferase reactions 4) Bonded Citrulline Malate to help facilitate rapid ATP turnover and lactate reabsorption to support higher training volumes at a given exercise intensity. 5) Three most vital electrolytes - Potassium chloride ans sodium - to optimize cell hydration and muscle contractile function while you train under the most brutal of conditions.