OSTHOLE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

OSTHOLE

Safety grade: A

Osthole is a naturally occurring compound found in certain plants and citrus fruits. It's a plant-derived ingredient known for its potential to improve skin appearance and texture.

Osthole is used in cosmetics to condition and improve skin by helping to enhance skin smoothness, reduce the appearance of imperfections, and support overall skin health.

Graded using: COSING.

Last verified: May 26, 2026