Skin, explained by science.
Skincare is full of confident claims. We check which ones hold up.
What's going on with my skin?
Acne, rosacea, eczema, melasma and more — what it is, why it happens, and what actually treats it.
What does this ingredient do?
Retinoids, acids, antioxidants — real mechanisms and the concentrations that matter, minus the marketing.
How does this laser work?
Lasers, peels, microneedling — what each device actually does to skin and how they differ.
What will my prescription do?
Topicals, pills, and biologics — how they work, side effects, and what the trials showed.
Which one should I choose?
Tretinoin vs azelaic acid. Fraxel vs CO2. Side-by-side verdicts with the evidence in plain English.
What's actually in this bottle?
Cleansers, serums, and sunscreens — what's really in them, and who each one suits.
See what is actually happening under the skin
Original cross-section diagrams, drawn for every page — so you can easily understand and compare different treatments.
Deep Dive Guides
How to Read a Skincare Study
Endpoints, sample sizes, and how to spot a study that doesn't say what the headline claims.
How Dermapedia Grades Evidence
The evidence ladder we use on every page, from case reports to meta-analyses.
Head-to-Head Comparisons
Tretinoin vs azelaic acid. Fraxel vs CO2. Side-by-side verdicts with the evidence in plain English.
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