Klean ATHLETE Klean Casein Protein | Designed for Athletes to Help with Recovery and Muscle Maintenance | NSF Certified for Sport | Natural Vanilla Custard Flavor

Committed to Quality: Our uncompromising standards in state-of-the-art U.S. manufacturing facilities, rigorous testing, and third-party certifications ensure the safety, consistency, and quality of our complete product line, which is GMO-free and formulated without wheat, gluten, artificial coloring, flavoring, or sweeteners. Integrity and quality are paramount for us.

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 directly with major and minor league teams, collegiate teams, and various professional sports organizations. Klean is the preferred supplement choice for many of the world's top coaches, trainers, health professionals, and their athletes, including those representing national teams, Elite World Champions, and more. When health, peak performance, and careers are at stake, athletes deserve sports supplements they can trust.

Green in Klean: It's the inspiration, science, and ingredients behind our products. It's about operating sustainably and responsibly to protect and preserve the natural beauty of the most important training facility we've got - planet Earth.

Klean Casein: A NSF Certified for Sport supplement that supplies 24 grams of high-quality protein from micellar casein in each serving. Slow-digesting proteins provide a steadier release of amino acids into the bloodstream, helping to maintain a positive nitrogen balance, support satiety, and facilitate muscle recovery.

Klean is Clean: Klean Athlete products are GMO-free and formulated without wheat, gluten, or artificial coloring, flavoring, or sweeteners. Every product is third-party certified by NSF International's NSF Certified for Sport program, allowing athletes, coaches, and trainers to make more informed decisions when choosing sports supplements.

Fuel Your Foundation. Perform At Your Peak: We power health and peak performance in athletes who demand the most from themselves, their sport, and their nutrition.

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