Health Library
Skincare Basics
How to read cosmetic labels and ingredient lists — general education only.
All articlesNutrition FoundationsRoutines & Daily HabitsSupplement BasicsSkincare BasicsPrivacy & Health DataLabs & BiomarkersDNA & Wellness

Skincare Basics
What cosmetic label terms like "hypoallergenic" and "natural" mean
A label-literacy guide to cosmetic marketing words — hypoallergenic, natural, clean, fragrance-free, non-comedogenic — and which have no legal definition.
June 16, 2026· 6 min read

Skincare Basics
How to read a sunscreen's Drug Facts label
A label-literacy guide to the Drug Facts panel on US sunscreens — active ingredients, SPF, broad spectrum, water resistance, and where each term is defined.
June 16, 2026· 6 min read

Skincare Basics
Is it a cosmetic or a drug? How to tell from the label
How US law sorts everyday personal-care products into cosmetics, OTC drugs, or both — and how a Drug Facts panel signals the difference.
June 12, 2026· 5 min read

Skincare Basics
How to read a skincare ingredient list (INCI)
A general guide to cosmetic ingredient lists: INCI names, the descending-order rule, Drug Facts panels, and what a label can and can't tell you.
June 11, 2026· 5 min read