The skin encyclopedia

Skin, explained by science.

Skincare is confusing. We separate science from marketing and explain what actually works.

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Why trust Dermapedia?

Written by a dermatologist. Harvard-affiliated, board-certified.

Zero sponsored content. No brand partnerships, no paid placements.

Completely free. Evidence-based skincare education without paywalls.

Mechanism-first. Explains the why, not just the what.

A growing reference library. Ingredients, conditions, procedures, medications.

Acne, rosacea, eczema, melasma and more — what it is, why it happens, and what actually treats it.

Topicals, pills, and biologics — how they work, side effects, and what the trials showed.

Cleansers, serums, and sunscreens — what's really in them, and who each one suits.

Diagrams

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.

New guides, ingredient deep-dives, and dermatologist insights — no spam, ever.

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