We're serious about your performance and sports eligibility. That's why we pay attention to what we're putting into your body. Optimum EFX is proudly Informed-Sport Certified. This means all our sports performance supplements have undergone rigorous testing to ensure they are free of every known banned substance in the Olympics and in every professional sport.

Being Informed-Sport Certified means our top-quality products don't ask you to choose between high performance and your health and eligibility. All of our products are precisely formulated to meet the demands of professional athletes, so you can trust that you are getting the cleanest, most effective supplements on the market.

It's time to get aggressive, get motivated, and get informed about what you're using to fuel your body. Reach new heights with safe, legal, and effective high performance supplements.