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

2-METHYLPROPANOL

Isobutanol

Safety grade: A

Isobutanol is a simple alcohol that has a mild, slightly sweet odor. It is a colorless liquid commonly found naturally in some fermented foods and beverages, but is also made in laboratories.

It is used in cosmetic products as a fragrance ingredient, helping to contribute to or carry a product's scent.

Graded using: COSING.

Last verified: May 26, 2026