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the claim

Collagen supplements improve skin elasticity and hydration

the verdict
SUPPORTED
the evidence backs this
Recorded sources
6 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that collagen supplements improve skin elasticity and hydration?

Yes. Multiple systematic reviews, meta-analyses, and randomized controlled trials consistently demonstrate that oral supplementation with hydrolyzed collagen and collagen peptides significantly improves skin hydration, elasticity, and overall signs of aging.

Verdict: SUPPORTED · 6 sources for, 0 against · Last checked

The analysis

The provided literature consists of multiple randomized controlled trials, systematic reviews, and meta-analyses that unanimously support the claim that collagen supplements improve skin hydration and elasticity. There are no papers in the retrieved set that refute or contradict this finding.

Evidence for · 6
Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta‐analysis
2021
A systematic review and meta-analysis of clinical trials concluded that hydrolyzed collagen ingestion for 90 days improves skin elasticity and hydration while reducing wrinkles.
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Miranda, R. B. d., Weimer, P., & Rossi, R. C. (2021). Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta‐analysis. doi.org. https://doi.org/10.1111/ijd.15518

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More for · 5
Oral Supplementation of Collagen Peptides Improves Skin Hydration by Increasing the Natural Moisturizing Factor Content in the Stratum Corneum: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial
2021
A randomized controlled trial demonstrated that oral ingestion of collagen peptides increases skin water content and decreases transepidermal water loss through elevated natural moisturizing factor levels.
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Miyanaga, M., Uchiyama, T., Motoyama, A., Ochiai, N., Ueda, O., & Ogo, M. (2021). Oral Supplementation of Collagen Peptides Improves Skin Hydration by Increasing the Natural Moisturizing Factor Content in the Stratum Corneum: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial. doi.org. https://doi.org/10.1159/000513988

A Clinical Trial Shows Improvement in Skin Collagen, Hydration, Elasticity, Wrinkles, Scalp, and Hair Condition following 12‐Week Oral Intake of a Supplement Containing Hydrolysed Collagen
2024
A randomized clinical trial found significant improvements in skin hydration and elasticity following 12 weeks of oral hydrolysed collagen intake.
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Reilly, D. M., Kynaston, L., Naseem, S., Proudman, E., & Laceby, D. (2024). A Clinical Trial Shows Improvement in Skin Collagen, Hydration, Elasticity, Wrinkles, Scalp, and Hair Condition following 12‐Week Oral Intake of a Supplement Containing Hydrolysed Collagen. doi.org. https://doi.org/10.1155/2024/8752787

The Oral Intake of Specific Bovine-Derived Bioactive Collagen Peptides Has a Stimulatory Effect on Dermal Matrix Synthesis and Improves Various Clinical Skin Parameters
2025
A clinical trial showed that daily oral supplementation with bovine-derived bioactive collagen peptides significantly improved skin elasticity and hydration within weeks.
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Proksch, E., Zdzieblik, D., & Oesser, S. (2025). The Oral Intake of Specific Bovine-Derived Bioactive Collagen Peptides Has a Stimulatory Effect on Dermal Matrix Synthesis and Improves Various Clinical Skin Parameters. doi.org. https://doi.org/10.3390/cosmetics12020079

A Comprehensive Analysis of Hydrolyzed Collagen Supplementation Effects on Skin Aging and Texture and Its Potential Benefits for Osteoarthritis
2025
A randomized controlled trial observed significant increases in skin elasticity, hydration, and reductions in wrinkle depth after 12 weeks of hydrolyzed collagen supplementation.
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Khan, M. A. (2025). A Comprehensive Analysis of Hydrolyzed Collagen Supplementation Effects on Skin Aging and Texture and Its Potential Benefits for Osteoarthritis. doi.org. https://doi.org/10.70749/ijbr.v3i5.1601

Collagen, Curcumin, and Glutathione to Enhance Dermal Health in Aging Women with Declining Estrogen Levels -A Narrative Review.
2026
A narrative review of recent clinical studies supports collagen as an effective nutraceutical treatment showing improvement in various skin attributes.
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P, A. & ED, L. (2026). Collagen, Curcumin, and Glutathione to Enhance Dermal Health in Aging Women with Declining Estrogen Levels -A Narrative Review.. doi.org. https://doi.org/10.1007/s13555-026-01731-z

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What does the evidence say?

The provided literature consists of multiple randomized controlled trials, systematic reviews, and meta-analyses that unanimously support the claim that collagen supplements improve skin hydration and elasticity. There are no papers in the retrieved set that refute or contradict this finding.

Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 8804 Aug 2026
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