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Evidence-based skincare

Plain-language explainers, each grounded in the study behind the claim. We cite our sources and stick to what the research actually measured.

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Routines
A complete budget K-beauty routine, justified ingredient by ingredient
You can build a genuinely good routine for very little. Here's the whole thing — cleanser to SPF — with the evidence for each step, and where spending more buys nothing.
July 2, 20265 min readUpdated Jul 2026