Wrinkle reduction is the headline promise on most collagen products, and it is also the claim the evidence handles least cleanly. Collagen supplements show more consistent results for skin hydration and elasticity than for wrinkles specifically. The wrinkle findings exist, but they are the part of the research most shaped by who ran the study.
The short answer
Some trials report that collagen reduces wrinkle depth, and a pooled analysis of many studies found the same. The complication appears when the studies are sorted by funding. In the most careful review, the wrinkle benefit weakened once industry-funded trials were set aside, and the largest independent review found improvements in hydration and elasticity alongside no measurable effect on wrinkles. Collagen may soften fine lines modestly, though the wrinkle evidence is the weakest link in an already mixed picture.
What the wrinkle studies found
Several randomised trials measured wrinkles directly. One widely cited study gave participants 2.5 grams of specific collagen peptides daily for eight weeks and recorded a reduction in eye wrinkle depth of around 20 percent compared with placebo. Results like this are the basis for the wrinkle claims on the label, and taken alone they look encouraging.
A 2025 review in the American Journal of Medicine then pooled 23 trials covering close to 1,500 people. Across all of them combined, collagen improved hydration, elasticity, and wrinkles.
Where the wrinkle case weakens
The same 2025 review took one further step that changed the interpretation. When the researchers separated the trials by who funded them, the improvement faded in the studies without industry backing. Their conclusion was that the current evidence fails to establish collagen as a treatment for skin ageing.
A separate and larger review in 2026, an independent umbrella analysis combining 16 earlier reviews and 113 trials, reached a split result. It found that consistent collagen use improved skin elasticity and hydration, and it found no significant effect on wrinkles or skin roughness. So the two most rigorous looks at the question agree that wrinkles are where collagen’s case is thinnest.
The firmer ground: hydration and elasticity
Set the wrinkles aside, and the research is steadier on two related measures. Both major reviews found that collagen improved skin hydration and elasticity with consistent use over 8 to 12 weeks or more. These are real, if modest, effects, and they are more reproducible than the wrinkle results. For the full picture of what collagen does, see our guide on whether collagen supplements actually work.
The bottom line
Collagen has a better claim to improving skin hydration and elasticity than to erasing wrinkles. The wrinkle studies exist, and some are positive, but the effect shrinks under the most careful analysis and disappears in the largest independent one. Anyone taking collagen mainly to remove wrinkles is relying on the weakest part of the evidence. Realistic expectations, better hydration and a little more elasticity over a couple of months, match what the research more reliably shows. Dose and consistency matter here, which we cover in our guide on how much collagen to take a day.
Questions people ask
Does collagen get rid of wrinkles?
The evidence is mixed and leans weak. Some trials show reduced wrinkle depth, but the most careful reviews found the effect tied largely to industry funding, and the largest independent review found no wrinkle benefit.
How long does collagen take to affect skin?
The studies that saw changes ran for 8 to 12 weeks or longer. Hydration and elasticity are the measures most likely to improve in that window.
What does collagen reliably do for skin?
The steadier findings are for skin hydration and elasticity with consistent use. Wrinkle reduction is less consistent across studies.
Is collagen better than a wrinkle cream?
They act differently, and the evidence base differs too. Collagen works from within on hydration and elasticity, while topical treatments act on the skin surface. Neither reliably erases established wrinkles.
References
Myung SK, Park Y. Effects of Collagen Supplements on Skin Aging: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. The American Journal of Medicine. 2025;138:1264-1277. https://pubmed.ncbi.nlm.nih.gov/40324552/
Ravindran R, Pizzol D, López-Gil JF, et al. Collagen Supplementation for Skin and Musculoskeletal Health: An Umbrella Review of Meta-Analyses on Elasticity, Hydration, and Structural Outcomes. Aesthetic Surgery Journal Open Forum. 2026;8:ojag018. https://doi.org/10.1093/asjof/ojag018
Proksch E, Schunck M, Zague V, Segger D, Degwert J, Oesser S. Oral intake of specific bioactive collagen peptides reduces skin wrinkles and increases dermal matrix synthesis. Skin Pharmacology and Physiology. 2014;27(3):113-119.
This article is for information only and is not medical advice. Supplements are not meant to diagnose, treat, cure, or prevent any illness. Talk to your doctor before starting anything new, especially if you are pregnant, breastfeeding, or taking medication.
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