Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-Analysis
Pu SY, Huang YL, Pu CM, Kang YN, Hoang KD, Chen KH, Chen C
Published in Nutrients
Methodology
Systematic review and meta-analysis of randomized controlled trials of oral collagen supplementation on skin hydration, elasticity and wrinkling in adults.
Key Findings
Oral collagen supplementation produced statistically significant improvements in skin hydration and elasticity versus placebo; effects on wrinkles were smaller and less consistent.
Conclusions
Oral collagen supplements improve skin hydration and elasticity, though effect sizes are modest and industry influence is common.
Limitations
High proportion of manufacturer-funded trials; heterogeneity in collagen type, dose and outcome instruments; short follow-up.
Supplements Studied
Oral collagen supplementation produced statistically significant improvements in skin hydration and elasticity versus placebo.
Outcomes Measured
Oral collagen supplementation produced statistically significant improvements in skin hydration and elasticity versus placebo.
Oral collagen supplementation produced statistically significant improvements in skin hydration and elasticity versus placebo; effects on wrinkles were smaller and less consistent.
Study Details
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Disclosures
Funding
Academic institutional funding
This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.