Among teens, common performance-enhancing drugs and supplements include: Creatine. Creatine is a naturally occurring compound in the body that's also sold as an over-the-counter supplement. It's used to improve performance during high-intensity bursts of activity and to help increase muscle mass.

Does creatine count as performance enhancing?

In high intensity exercise, creatine can improve performance by up to 15%, and it can also help you gain muscle and strength. Creatine has little to no benefit for lower intensity endurance exercise, but it may be beneficial if you also include high intensity exercises in your training.

What is the most performance enhancing drug?