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the claim

Taking oral collagen peptide supplements improves skin elasticity in adults.

the verdict
INSUFFICIENT LEANING
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 taking oral collagen peptide supplements improves skin elasticity in adults?

Unclear. Two peer-reviewed reviews and one small open-label trial in hospitalized older adults associate oral collagen peptide supplementation with improvements in skin elasticity, but the reviews themselves note heterogeneous designs, small samples, and industry funding that preclude firm conclusions.

Verdict: PARTIAL LEAN · 6 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 6
Oral collagen supplements intake on improving skin structure and function
2022
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Justyna, Ż. (2022). Oral collagen supplements intake on improving skin structure and function. zenodo.org. https://doi.org/10.12775/JEHS.2022.12.07.043

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More for · 5
Influence of Oral Collagen Peptides on Skin Biophysical Properties in Humans: A Narrative Review.
2026
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D, L., G, Z., T, G., L, Z., & MQ, M. (2026). Influence of Oral Collagen Peptides on Skin Biophysical Properties in Humans: A Narrative Review.. doi.org. https://doi.org/10.2147/ccid.s627418

Effect of an Oral Nutrition Supplement Containing Collagen Peptides on Stratum Corneum Hydration and Skin Elasticity in Hospitalized Older Adults: A Multicenter Open-label Randomized Controlled Study
2020
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Nomoto, T. & Iizaka, S. (2020). Effect of an Oral Nutrition Supplement Containing Collagen Peptides on Stratum Corneum Hydration and Skin Elasticity in Hospitalized Older Adults: A Multicenter Open-label Randomized Controlled Study. doi.org. https://doi.org/10.1097/01.asw.0000655492.40898.55

Dietary Collagen Supplementation as a Strategy for Skin Health: A Narrative Review of Clinical Effects on Skin, Hair, Nails, and Wound Healing.
2026
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A, B., M, J., I, F., & E, Z. (2026). Dietary Collagen Supplementation as a Strategy for Skin Health: A Narrative Review of Clinical Effects on Skin, Hair, Nails, and Wound Healing.. doi.org. https://doi.org/10.3390/nu18132141

Collagen: What It Is, Types, Function & Benefits
Get citation
Collagen: What It Is, Types, Function & Benefits. (n.d.). my.clevelandclinic.org. https://my.clevelandclinic.org/health/articles/23089-collagen

Is collagen effective in preventing hair loss?
2025
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Nacional, C. d. I. d. M. d. l. U., Johanna, A., & Carolina, Z. D. (2025). Is collagen effective in preventing hair loss?. zenodo.org. https://doi.org/10.5281/zenodo.15014932

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