GNC AMP Wheybolic is a high-quality protein supplement designed to support muscle growth and recovery. It features a blend of ultra-pure, fast-digesting whey protein isolate and hydrolysates, along with added leucine and Velositol to accelerate muscle protein synthesis. Clinically proven to increase muscle strength by 30% in just 8 weeks of resistance training, this protein powder is ideal for use before or after workouts, or even on non-training days. It provides critical amino acids to fuel muscles and is certified Banned Substance Tested.