BCAAs 4:1:1 Ratio Featuring Active TR Delayed Release Leucine 4,000 mg of Leucine per Serving Highly Water Soluble BCAA's Features Sustamine Powder Dietary Supplement Natural and Artificial Flavors Active TR Leucine Delivers the most anabolic essential amino acid to the body over time to prolong the signaling of protein synthesis. Instantized BCAAs This is for anyone that is tired of shaker cup full of foam every time they mix their BCAAs. Contained within that bothersome foam is the majority of your Leucine, the most important of the BCAA's for anabolic signaling. If you don't consume the foam, you're simply wasting your hard earned money. What good is a high Leucine BCAA product if you do not consume adequate quantities of Leucine?