Informed Sport Certified: Tested for banned substances, safe for athletes 5 g of BCAAs in a 2:1:1 ratio Vitamin C and zinc support immunity Magnesium for muscle supportProduct Description Keep going with Gold Standard muscle support and fatigue reduction During training, GOLD STANDARD BCAA can help you keep going while supporting your immune system and reducing fatigue, so you can get the most out of your workout and make sure you're ready to do it again. The powder is formulated to be highly drinkable with light flavors to encourage regular consumption throughout prolonged workouts, helping you stay in the game. Ready-to-mix powdered dietary supplement with BCAAs, vitamin C, zinc, magnesium, and sweetener.