COSRX

If K-beauty has a gateway product, it might be COSRX's Advanced Snail 96 Mucin Power Essence — the cult bottle that got half the internet into Korean skincare. COSRX keeps things refreshingly no-nonsense: effective, minimalist formulas like snail essence, cica masks and its AHA/BHA toner. A couple are gently exfoliating, so ease in and keep SPF handy.