ZINC CYSTEINATE is graded C (Moderate) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-SAFETY-.
ZINC CYSTEINATE
Safety grade: C
Zinc Cysteinate is a compound made from zinc combined with an amino acid called cysteine. It's used in skincare products to help protect skin from bacteria and microbes that can cause odor or infection.
This ingredient works as an antimicrobial agent to prevent the growth of bacteria and other microorganisms on the skin, helping to keep skin cleaner and fresher.
Graded using: COSING.
- EU COSING — Restricted
Last verified: May 26, 2026
Safer alternatives to ZINC CYSTEINATE
- CAMELLIA SINENSIS LEAF EXTRACT — Grade A. Natural antimicrobial extract that inhibits bacterial growth on skin.
- ROSMARINUS OFFICINALIS LEAF EXTRACT — Grade A. Plant extract with proven antimicrobial properties for skin protection.
- OCTENIDINE HCL — Grade A. Broad-spectrum antimicrobial agent that prevents bacterial proliferation.
Other Antimicrobial ingredients
- ALCOHOL — Grade A**
- C12-15 ALKYL BENZOATE — Grade A
- BENZYL BENZOATE — Grade C
- CETRIMONIUM CHLORIDE — Grade A
- CHLORPHENESIN — Grade B
- HYDROGEN PEROXIDE — Grade C**
- CETYLPYRIDINIUM CHLORIDE — Grade A