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

DIMETHYL CYSTINATE

Safety grade: A

Dimethyl cystinate is a modified amino acid derivative created in the laboratory. It's a conditioning agent that helps improve the feel and appearance of hair and skin by reducing static electricity and enhancing moisture retention.

This ingredient is used in hair and skincare products to reduce frizz and static while providing conditioning benefits that leave hair and skin feeling smoother and more manageable.

Graded using: COSING.

Last verified: May 26, 2026