Chewable tablet that supports the natural way the human body produces energy.
Klean Endurance is a NSF Certified for Sport® supplement of chewable tablets that contain pure D-Ribose to support the natural production of adenosine triphosphate (ATP). Klean Endurance chewable tablets are great tasting, natural vanilla flavored, sweetened with xylitol and convenient for on-the-go supplementation.
![](https://cdn11.bigcommerce.com/s-ci9sov9u0a/products/118/images/39275/Screen%252520Shot%2525202021-02-03%252520at%2525201.23.52%252520PM__77705.1677140503.1280.1280.png?c=1)