KLEAN ATHLETE® products are formulated without wheat or gluten and contain no artificial coloring, flavoring or sweeteners. The comprehensive line of nutritional supplements is tested and certified through NSF International and NSF Certified for Sport® program.
KLEAN ENDURANCE™ contains pure D-Ribose to support the natural process by which a body produces adenosine triphosphate (ATP). The naturally-occurring pentose sugar supports cardiovascular health, energy production and mitochondrial function. Available in a great-tasting chewable tablet, Klean Endurance™ offers a clinically proven method to help restore energy during exercise. †