COSRX is a Korean skincare brand focused on providing simple, effective, and science-backed products, particularly for sensitive and acne-prone skin. The brand's philosophy is "Beauty in Simplicity," using high-quality, skin-friendly ingredients like centella asiatica, snail mucin, and AHA/BHA, with a commitment to minimal formulas, no added fragrances, and animal testing-free products. COSRX is known for being transparent about its ingredient concentrations and offering a wide range of affordable, functional solutions for common skin concerns like breakouts, redness, and dullness.