The free ingredient comparison tool

Two that do the same job. Which is yours?

When two ingredients chase the same goal, the label rarely tells you which to pick. Each page below puts a pair side by side, honestly, and helps you choose by your skin. Want to use two together instead? See if they mix. Comparing whole products?Use the product comparison tool.

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Actives 258

Retinoids, vitamin C forms and the other workhorses. Same job, different trade-offs.

Hydrators 78

Humectants that pull water into the skin. Closer than the marketing suggests.

How we score every ingredient →