Call Toll Free

10% Off Coupon

Klean Endurance 90 caps Klean Athlete

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.

Reward Points You will earn 5 Reward Points for writing a review and 10 Reward Points for rating this product.

Availability: In stock

Douglas Labs

We will send this product in 3-5 days (US only*).

Call us now for more info about our products.

Return unopened purchased items in 30 days and get all your money back.

Reorder this product and save!




Klean Endurance is a useful dietary supplement to help the athlete restore energy, support cardiac function and reduce muscle stiffness, soreness, and fatigue.

Additional Info

Additional Info

Size 90
Form Capsules
Brand Douglas Labs
Type Unisex
Content Natural
Dietery Specialty Paraben Free
Suggested Use

Take 1-3 chewable tablets just before (within 15-30 minutes) and just after exercise or physical activity.

Best taken with a food or sugar source to prevent low blood sugar from occurring

Supplement Facts

Serving Size: 1 Chewable Tablet

Amount Per Serving
 ... 10
Total Carbohydrates ... 2g
Sugars ... 1.67g 
(from D-Ribose)
Sugar Alcohol ... 0.5g 
D-Ribose ... 1.67g

Other ingredients: Xylitol, cellulose, hydroxypropylcellulose, natural orange and vanilla flavors, citric acid, mannitol, vegetable stearate, stearic acid, natural palm wax(Copernicia prunifera), and silica.

This product contains NO salt, yeast, wheat, gluten, soy, corn, dairy products, artificial flavoring or colors, preservatives or ingredients of animal origin.

UPC Code No


Write Your Own Review

Only registered users can write reviews. Please, log in or register



Use spaces to separate tags. Use single quotes (') for phrases.