Guides
How to Read a Cosmetic Ingredient List
Ingredient lists follow rules. Learn the ordering, the 1% line, INCI names, and why "fragrance" can hide dozens of substances.
How to Patch Test a New Product
Where to apply it, how long to wait, and how to tell irritation from a genuine allergy.
Choosing a Sunscreen You Will Actually Wear
Mineral versus chemical filters, how much to apply, and why consistency matters more than the formula you pick.
What a Skincare Routine Actually Needs
The three steps with evidence behind them, and an honest look at which extras are optional.
When Cosmetics Expire, and What Goes First
Shelf life before and after opening, the PAO symbol, and the two products worth being strict about.
Beauty Marketing Words That Mean Nothing
Dermatologically tested, hypoallergenic, non-comedogenic, clean: what each one does and does not promise.