What Is It: This muscle builder uses creatine monohydrate to increase your training productivity with more endurance and more energy. Creatine is naturally produced by the body, but in supplement form, it will increase strength and overall muscle growth. This is the most studied ingredient in the supplement industry and ON has provided it in cap form. How It Works: Anyone who is ready to have more energy, build more muscle faster, and have more endurance is looking for creatine*. Creatine is one