Short, non-diagnostic definitions that help shoppers understand routine language before choosing OTC products.
A common cosmetic ingredient used for the look of uneven tone, oiliness, and redness.
Barrier-supporting lipids often used in moisturizers for dry or sensitive-feeling skin.
A BHA used in some OTC products for oily skin and blackhead-prone routines. Avoid if allergic.
Sunscreen using mineral UV filters such as zinc oxide or titanium dioxide.
Trying a small amount first to check tolerance before using a new product broadly.
A cosmetic description for skin that feels tight, dry, stinging, or over-exfoliated.