CAS Number:
Varies by specific ingredient (e.g., 627-83-8 for Glycol Distearate)
Chemical / INCI Name:
Various (e.g., Glycol Distearate, Styrene/Acrylates Copolymer, Titanium Dioxide)
Common Opacifiers:
Glycol Distearate, Glycol Stearate, Stearyl Alcohol, Cetearyl Alcohol, Titanium Dioxide, Styrene/Acrylates Copolymer
Uses:
Opacifiers are ingredients added to liquid and semi-liquid formulations to reduce transparency and create a pearlescent, creamy, or opaque appearance. They are widely used in:
· Personal Care & Cosmetics: Shampoos, conditioners, liquid soaps, lotions, and creams to achieve a rich, luxurious, and aesthetically pleasing appearance .
· Household Products: Liquid detergents, fabric softeners, and cleaners to improve visual appeal and consumer perception .
Origin:
Opacifiers can be synthetic (e.g., styrene/acrylates copolymers, glycol distearate), naturally-derived (e.g., fatty alcohols from vegetable oils), or mineral-based (e.g., titanium dioxide) .
What does Opacifiers do in a formulation?
- Opacity Agent: Reduces light transmission, making the product appear opaque or pearlescent .
- Pearlescent Agent: Creates a shimmering, pearl-like effect (especially glycol distearate) .
- Viscosity Modifier: Some opacifiers also contribute to thickening the formulation .
- Aesthetic Enhancer: Improves consumer appeal by creating a rich, creamy appearance
Safety Profile:
· General Hazard Classification: Most opacifiers used in cosmetics are considered safe for topical use at recommended concentrations .
· Irritation & Sensitization: Generally regarded as non-irritating and non-sensitizing when used properly .
· Regulatory Status: Specific opacifiers are approved for use in cosmetics worldwide, with concentration limits depending on the specific ingredient .