Skincare ingredient guide

What each popular ingredient actually does, when to use it and what to pair it with.

RetinolSoftens fine lines and wrinkles over time · Unclogs pores and helps prevent breakoutsActive · PMVitamin CBrightens dull skin · Helps fade dark spotsActive · AMNiacinamideMinimizes the look of pores · Balances oil productionGentle · AM or PMAHAsInstantly brighter, smoother skin · Fades dark spots and sun damageActive · PMSalicylic acidClears blackheads and clogged pores · Reduces breakoutsActive · PMBenzoyl peroxideReduces acne-causing bacteria · Helps calm inflamed pimplesActive · AMHyaluronic acidInstant hydration · Plumper-looking skinGentle · AM or PMAzelaic acidCalms the look of redness · Reduces breakoutsGentle · AM or PMPeptidesSupports firmer-looking skin · Helps strengthen the barrierGentle · AM or PMCeramidesRepair a damaged skin barrier · Lock in moistureGentle · AM or PMSunscreenPrevents dark spots from coming back · Protects against photoagingGentle · AMTranexamic acidFades stubborn dark spots · Evens out patchy-looking toneGentle · AM or PMBakuchiolSoftens the look of fine lines · Improves tone and textureGentle · AM or PMCentella (cica)Calms redness and irritation · Supports barrier repairGentle · AM or PMSqualaneSeals in hydration · Softens dry patchesGentle · AM or PM

Wondering whether two of these can go together? Use the ingredient mix checker.