Collagen supplements reverse skin aging
evidence
The Claim
Many believe that taking collagen supplements can significantly reverse signs of skin aging, such as wrinkles and sagging. The idea is that ingesting collagen will directly replenish the skin’s collagen stores, thereby restoring youthfulness.
Origin
This myth has been popularized by beauty and wellness companies promoting collagen supplements as anti-aging miracles, often backed by anecdotal evidence and celebrity endorsements.
What Science Says
Research indicates that collagen supplementation may improve skin elasticity and hydration, but the effect sizes are modest. A 2019 meta-analysis found that collagen supplements can increase skin elasticity and moisture but with small effect sizes. The ability to reverse aging significantly is not supported by current evidence.
Verdict
Partially True
Sources
- PMID:33742704 Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis.
- PMID:40324552 Effects of Collagen Supplements on Skin Aging: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
- PMID:38192916 Exploring the Impact of Hydrolyzed Collagen Oral Supplementation on Skin Rejuvenation: A Systematic Review and Meta-Analysis.