Major Collagen Review Separates Proven Benefits From Popular Health Claims

Collagen supplements finally put to the test-and the results separate science from hype.

From promises of wrinkle-free skin to claims of faster workout recovery, collagen has become one of the wellness industry's biggest trends. But the most comprehensive review of collagen research to date suggests that while some benefits are real, others may be overstated.

Published in the Aesthetic Surgery Journal Open Forum, the analysis pooled data from 16 systematic reviews, 113 randomized controlled trials, and nearly 8,000 participants worldwide. Researchers found that collagen supplementation can improve skin health and help ease symptoms of osteoarthritis, but offers little evidence of enhancing athletic performance.

One of the strongest findings involved skin health. People who took collagen consistently experienced improvements in skin hydration and elasticity, with longer periods of supplementation generally producing better results. Researchers say these effects may support healthier skin aging over time.

Collagen also showed benefits for people with osteoarthritis. Longer-term use was linked to reductions in joint pain and stiffness, suggesting it may help improve comfort and mobility in individuals affected by the condition.

Beyond skin and joints, the review found modest evidence that collagen may support muscle mass, muscle structure, and tendon health. However, the improvements were generally moderate rather than dramatic.

In contrast, the study found little support for popular claims that collagen boosts sports performance. Researchers reported no meaningful improvements in exercise recovery, muscle soreness, or overall athletic performance, challenging a major marketing message often aimed at fitness enthusiasts.

Researchers concluded that collagen is not a miracle supplement, but it may offer genuine benefits for skin health and osteoarthritis when used consistently. They also emphasized the need for more high-quality studies to determine optimal doses, long-term effects, and whether different collagen sources produce different results.

REFERENCE: Roshan Ravindran, Damiano Pizzol, José Francisco López-Gil, Masoud Rahmati, Laurent Boyer, Guillaume Fond, Laurie Butler, Angelica Stellato, Julia Gawronska, Yvonne Barnett, Helen Keyes, Pinar Soysal, Rafet Eren, Burak Onal, Dong Keon Yon, Lee Smith. Collagen Supplementation for Skin and Musculoskeletal Health: An Umbrella Review of Meta-Analyses on Elasticity, Hydration, and Structural Outcomes. Aesthetic Surgery Journal Open Forum, 2026; 8 DOI: 10.1093/asjof/ojag018