OXYQUINOLINE is graded C** (Moderate) by Expert·ING, based on COSING, FDA regulatory data. It is restricted under EU COSING — AnnexIII-SAFETY-.
OXYQUINOLINE
Safety grade: C**
Oxyquinoline is a chemical compound that acts as a preservative and antimicrobial agent in cosmetic formulations. It helps prevent the growth of bacteria and fungi that could spoil the product.
This ingredient stabilizes cosmetic products by preventing microbial contamination and extending shelf life, ensuring the product remains safe and effective throughout its use.
Graded using: COSING, FDA.
- EU COSING — Restricted
- Health Canada — Restricted
Last verified: May 26, 2026
Safer alternatives to OXYQUINOLINE
- GLUCOSE OXIDASE — Grade A. Enzyme that prevents microbial spoilage by breaking down glucose in formulations.
- LACTOPEROXIDASE — Grade A. Natural antimicrobial protein that prevents bacterial growth and extends shelf life.
Other Stabilising ingredients
- HYDROXYETHYLCELLULOSE — Grade A
- DISTEARDIMONIUM HECTORITE — Grade A
- MICROCRYSTALLINE CELLULOSE — Grade A
- CHOLESTEROL — Grade A
- HYDROGENATED VEGETABLE GLYCERIDES CITRATE — Grade A
- BETA-SITOSTEROL — Grade A
- COCONUT ALCOHOL — Grade A
- MONTMORILLONITE — Grade A