Longer, plain-English explainers on the basics — what your skin barrier actually does, how to pick a sunscreen, and how to tell real evidence from marketing.
How we rate the science behind every ingredient, medication, and procedure — and what Strong, Moderate, Limited, and Mixed evidence each mean.
A two-minute guide to telling real proof from marketing. "Clinically proven" often just means a brand asked its own customers if they liked it.