There’s no shortage of collagen supplements on the market — but what does the clinical evidence actually say? The Collagen Stewardship Alliance breaks down the findings of a double-blind, randomized, placebo-controlled trial published in the Journal of Cosmetic Dermatology (2024) to show exactly what 12 weeks of daily collagen peptide supplementation can — and can’t — do for skin health.

The visual study walks through the study design, participant criteria, and six dermatologist-assessed outcomes, from dermis density and skin elasticity to wrinkle visibility and perceived skin beauty. The results? Meaningful, measurable improvements — and a clear reminder that quality, consistency, and dosage matter.