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Page is loading, please waitPlain-language explainers for the most important skincare actives — what they do, who they suit, what to avoid pairing them with, and which invoice-verified products on TheSkinProof contain them.
A water-soluble form of vitamin B3 that controls oil, fades dark spots, and strengthens the skin barrier.
A vitamin-A derivative — the most-studied anti-aging active in dermatology.
A potent antioxidant that brightens, fades pigmentation, and shields skin from free-radical damage.
A humectant that holds up to 1000× its weight in water — instant skin hydration.
An oil-soluble exfoliant that unclogs pores from inside — the gold-standard acne active.
The smallest AHA — exfoliates the surface to brighten dull skin and fade pigmentation.
Lipids that make up 50% of your skin barrier — replenishing them seals in moisture.
A K-beauty cult ingredient — hydrates, heals, and helps fade post-acne marks.
A calming hero — soothes inflammation, redness, and rosacea-like flare-ups.
A barrier-soother that hydrates and calms — gentle enough for the most sensitive skin.
Tiny protein fragments that signal the skin to make more collagen — anti-aging without the irritation.
A multi-tasker — treats acne, rosacea, and hyperpigmentation. Pregnancy-safe.