Tinosorb S

A next-generation chemical UV filter approved in Korea and Europe but not yet by the FDA — a key reason Korean sunscreens achieved cult status among US beauty communities in the 4th Wave. Broad-spectrum UVA+UVB coverage with very high photostability. Doesn't break down in sunlight, reducing the need for high concentrations. The ingredient responsible for Korean sunscreens' reputation for lightweight, invisible texture.