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Journal

The long version. Notes from our formulation team on how the skin barrier works, how to bring an active into a routine without wrecking it, and why our numbers are what they are.

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Aug 12, 2026 5 min read Barrier repair, explained without the jargon What the skin barrier is, how it gets worn down, and why the fix is usually to do less and put three lipids back. Read the article

Jun 24, 2026 5 min read How to introduce an acid without wrecking your skin Which acid to start with, how often to use it, what never to combine it with, and the signs that you should stop.
Apr 15, 2026 4 min read Why our niacinamide is 6%, and why we stopped there Higher percentages sell bottles. Here is what the research was actually done at, and what happened when we tested our own.
Mar 4, 2026 5 min read Mineral sunscreen without the cast Why zinc turns skin white, why three tints were the honest answer, and how to apply a mineral sunscreen so it does not pill.