Quaternium-18 Hectorite
Reviewed by Kate · Last updated 18 Aug 2026
Used as a suspending agent and also has emulsifying properties
EWG Safety Score
What Is Quaternium-18 Hectorite?
Quaternium-18 Hectorite is a powerful active ingredient known for its beneficial effects on the skin. It works at the cellular level to promote healthier, more radiant skin. This ingredient is widely used in professional skincare formulations for its proven efficacy.
When used regularly in a skincare routine, Quaternium-18 Hectorite can help improve overall skin health and appearance. It is suitable for various skin types and works well in combination with other beneficial ingredients.
How widely it's used
Regulatory information
Standardised cosmetic-ingredient identifiers used by regulators.
Show identifiers
- INCI Name
- QUATERNIUM-18 HECTORITE
- EC Number
- 275-128-5
- Function
- Viscosity Controlling
From the Clinic
Not sure what your skin actually needs?
Two minutes, a few questions, and we’ll point you at what matters — no guesswork.
Take the skin quizRelated Ingredients
7-Dehydrocholesterol
A cholesterol precursor that supports skin's natural vitamin D synthesis pathway
Acacia Senegal Gum
Functions as a thickening agent, emulsifier, or stabiliser
Acacia Senegal Gum Extract
A plant-derived thickener that stabilises formulations and maintains product texture
Acetylated Hydrogenated Cottonseed Glyceride
Provides Hydration
Acrylamide/Sodium Acryloyldimethyltaurate Copolymer
A synthetic polymer that stabilises emulsions and controls texture in skincare formulations
Acrylates/Beheneth-25 Methacrylate Copolymer
A polymer that helps control texture and consistency in skincare formulations
Learn More About Skincare Ingredients
Explore our comprehensive ingredient glossary to understand what's in your products.
Browse All IngredientsShop Our Products
Find professional skincare solutions at Skintique.