1-(3,4-DIMETHOXYPHENYL)-4,4-DIMETHYL-1,3-PENTANEDIONE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

1-(3,4-DIMETHOXYPHENYL)-4,4-DIMETHYL-1,3-PENTANEDIONE

Dimethoxyphenyl Pentanedione (Dorastine)

Safety grade: A

This is a lab-made chemical compound that acts as a sunscreen agent, designed to absorb certain wavelengths of ultraviolet light before they can penetrate the skin. It also helps keep other ingredients in a formula stable and effective over time.

It is used in cosmetic products to filter out harmful UV rays from sunlight, helping to protect the skin from sun damage, while also stabilizing the formula to extend shelf life.

Graded using: COSING.

Last verified: May 26, 2026