An ammonium salt used in many cosmetics. It is toxic. Causes eye irritations, hair loss, scalp scales similar to dandruff, and serious allergic reactions. Examples are cetrmonium bromide and cetylpyridinium chloride, which are used as detergents and topical antiseptics in various cosmetics. Avoid.
Quaternium may refer to:
- Polyquaternium
- Quaternium-15
- quaternary ammonium, functional group, cation, salt, compound


Firming Facial Créme with Alpha Lipoic Acid + Vitamin C Ester + DMAE
Rosewater Facial Spray
High Potency Vitamin C Serum
Nasolabial Fold+ Multi-Peptide Complex
Eye Gelee Concentrate
Sea Salt Cleansing Gel
Eye Complex Firming Creme
Multi-Factor Brightening Créme
Calming Rejuvenation Creme
Advanced Retinol Serum
Advanced Peptide Plus