DIMETHYL SULFOXIDE is graded F (Banned) by Expert·ING, based on FDA regulatory data. It is restricted under Health Canada (Prohibited).

DIMETHYL SULFOXIDE

DMSO

Safety grade: F

Dimethyl sulfoxide is a clear liquid solvent derived from wood pulp that has the ability to penetrate skin and carry other ingredients deeper into it. It's known for its distinctive garlic-like odor when absorbed through the skin.

In cosmetics, DMSO is used as a penetration enhancer and solvent to help other active ingredients absorb more effectively into the skin.

Graded using: FDA.

• Health Canada — Prohibited

Last verified: May 26, 2026