Do Collagen Supplements Fade Skin Spots?

Original Title

Effect of Reducing Pigmentation by Collagen Peptide Intake: A Randomized, Double-Blind, Placebo-Controlled Study

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Summary

Researchers tested if drinking 5 grams of regular or fermented collagen daily helps fade dark spots and redness on the face.

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Surprising Findings

Oral collagen peptides reduce visible pigmentation by stimulating fibroblast proliferation and extracellular matrix repair, rather than directly inhibiting melanin-producing enzymes.

Most skincare consumers expect pigmentation treatments to work like bleaching agents or tyrosinase inhibitors, but this shows collagen works by rebuilding skin structure and cell health from the inside out.

Practical Takeaways

Take 5.0 grams of porcine collagen peptides daily for at least 1 to 3 months to see measurable fading of dark spots and reduction in facial redness.

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Publication

Journal

Dermatology and Therapy

Year

2022

Authors

Aiko Himeno, Masaya Tsujikami, Seiko Koizumi, Toshiro Watanabe, M. Igase

Open Access
5 citations
Analysis v1