Collagen Delivers Skin and Joint Wins, But Not a Workout Miracle
A large review of 113 trials (about 8,000 participants) finds collagen can modestly improve skin hydration and elasticity and reduce osteoarthritis joint pain with consistent, long-term use, plus small gains in lean mass. It does not enhance post-exercise recovery or tendon properties, and effects on blood pressure, cholesterol, blood sugar, or oral health are inconclusive. Collagen is not a miracle cure and should be used with realistic expectations and medical guidance.


