In a double-blind RCT, 5g daily collagen peptide supplementation improved dermis density, skin moisture, wrinkle visibility, and nail color in East Asian women aged 43-65, with some benefits appearing within 28 days.
Visible improvements by day 28Collagen peptide group showed earlier wrinkle, elasticity, and nail improvements vs placebo
What the researchers found
5g daily collagen peptide supplementation significantly improved dermis density and skin moisture at 84 days, with visible improvements in wrinkles, elasticity, and nail color appearing by day 28 in East Asian women.
Why it matters
The collagen supplement market exceeds billions of dollars, but high-quality clinical evidence — especially in specific ethnic populations — has been limited. This RCT provides rigorous evidence that collagen peptides produce measurable skin improvements in East Asian women.
The numbers in context
85 women; ages 43-65; 5g collagen peptides daily; double-blind placebo-controlled design.
How the study worked
Double-blind, randomized, placebo-controlled trial. 85 healthy women (43-65 years) randomized to collagen peptides (5g) or maltodextrin placebo. Standardized face cream used by both groups. Skin parameters assessed at baseline, day 28, and day 84.
Who was studied
Healthy East Asian women aged 43-65
What this study cannot tell us
85 participants is moderate for an RCT. Single ethnic population. 84-day study — long-term maintenance unknown. Standardized cream use may confound some comparisons. Industry-funded (collagen manufacturer). Beauty perception is subjective. Nail outcomes are exploratory.
How to read the evidence
Moderate evidence — well-designed double-blind RCT with objective and subjective endpoints. Moderate sample size. Industry sponsorship noted.
When this study was published
Published in 2024. One of the first RCTs of collagen peptides specifically in East Asian women.
The bigger picture
This study adds ethnic-specific evidence to the collagen supplement literature. Skin structure and aging patterns differ across ethnicities, so population-specific data is important. The rapid onset (28 days) of visible improvements strengthens the case for collagen peptides as a functional supplement.
Questions still open
- How long do collagen peptide benefits persist after stopping supplementation?
- Are there dose-response differences — would more or less than 5g produce different results?
- Do collagen peptides from different sources (marine, bovine, porcine) produce equivalent skin benefits?
Common questions
Do collagen supplements really work for skin aging?
How much collagen do I need to take for skin benefits?
Read the original research
Influence of collagen peptide supplementation on visible signs of skin and nail health and -aging in an East Asian population: A double blind, randomized, placebo-controlled trial.
Journal of cosmetic dermatology, 23(11), 3645-3653
Citation
Vleminckx, Sara; Virgilio, Nicolina; Asserin, Jerome; Prawitt, Janne; Silva, Catarina I F. (2024). Influence of collagen peptide supplementation on visible signs of skin and nail health and -aging in an East Asian population: A double blind, randomized, placebo-controlled trial.. Journal of cosmetic dermatology, 23(11), 3645-3653. https://doi.org/10.1111/jocd.16458