Longevity & AgingLargest Collagen Study Ever Confirms Skin and Joint Benefits But Debunks Sports Hype
The largest collagen supplement review ever conducted analyzed nearly 8,000 participants across 113 randomized controlled trials and 16 systematic reviews. Researchers from Anglia Ruskin University found clear evidence that collagen supplementation improves skin hydration, skin elasticity, and reduces osteoarthritis pain and stiffness — especially with consistent, longer-term use. Modest benefits were also seen for muscle mass and tendon structure, supporting collagen's role in healthy aging. However, the review found no meaningful evidence that collagen boosts athletic performance, speeds post-workout recovery, or reduces muscle soreness. Evidence for metabolic and oral health benefits remained mixed and inconclusive.