The RX

The RX is COSRX's high-performance line: one hero active per formula, at a clearly labelled strength. Choose The Retinol for renewal, The 6 Peptide Skin Booster for firmness or The Hyaluronic Acid 3% Serum for deep hydration — or combine them in a targeted routine.

• One hero active — transparent, results-focused formulas.
• Clear strengths — know exactly what you're using — 0.1%, 0.3%, 3%.
• Built to layer — combine actives for a complete anti-aging routine.