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Background that does not fit on a product page: how to read an ingredient list, where comedogenicity ratings come from, and how a short routine is put together.
Routine
A routine built on four product types. Everything else is optional.
July 28, 2026 · 4 min read
Methodology
The comedogenicity scales you find online come from rabbit-ear tests in the 1970s. That is why we keep a watchlist, not a ban list.
6 min read
Basics
The INCI list tells you more than the front of the box. Three rules are enough to get started.
5 min read