Collagen is one of the most searched beauty and longevity supplements, but few products have placebo-controlled human data. In this trial of 114 women aged 45-65, 2.5 g a day of the specific bioactive peptide Verisol cut eye wrinkle volume by 20% versus placebo after 8 weeks. Biopsies showed 65% more procollagen type I and 18% more elastin, while a 6% fibrillin bump wasn't significant. The effect was still detectable 4 weeks after the last dose. But the results apply to one branded peptide in one population, not every collagen powder, so here's what the paper does and doesn't prove.
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