50 servings. Pro Performance Results: Creatine has become one of the most popular sports supplements among professional and amateur athletes. In the body, creatine is converted to creatine phosphate, which helps to fuel skeletal muscles and provides support for immediate energy production during high-intensity workouts. Over the past several years, numerous studies have shown that creatine supplementation may help to improve athletic performance (When used in conjunction with an exercise program). Pro Performance Quality: GNC Pro Performance Creatine Monohydrate is manufactured with unsurpassed quality control to ensure purity, potency and freshness. It is gluten free and blends easily with water or your favorite sports drink.