Klean Athlete Klean Endurance | D-Ribose to Restore Energy, Support Cardiac Function and Reduce Muscle Fatigue | NSF Certified for Sport | 90 Chewable Tablets | Natural Orange Vanilla Flavor

Committed to Quality

Our complete product line is GMO-free and formulated without wheat or gluten, artificial coloring, flavoring or sweeteners. For us, integrity is paramount and quality is absolute, support by the uncompromising standards we maintain at state-of-the-art U.S. manufacturing facilities, while upholding rigorous testing and third-party certifications to ensure safety, consistency and quality.

Trusted by 350+ pro teams

Klean Athlete is trusted by more than 350 professional and collegiate sports teams, their athletes, coaches and staff. We work with major and minor league teams, collegiate teams, and many professional sports organizations directly. Klean is also the preferred supplement choice for many of the world’s top coaches, trainers, health professionals and their athletes representing a variety of team and individual sports. In addition to Professional Baseball Championships, Professional Hockey Championships, Professional Football Championships and Professional Soccer Champions, these athletes are national team members, Elite World Champions and more. Klean is who we are, what we stand for, and the common thread in all athletes who trust in us, professional or not. When health, peak performance and careers are at stake, athletes deserve sports supplements they can trust.*

Green in Klean

It’s the inspiration for our products, the science behind them and ingredients within. It’s about operating sustainability and responsibly, to protect and preserve the natural beauty of the most important training facility we’ve got - planet earth.