Science
Mechanism of Action
It functions as a phosphate-functionalized polymer, anchoring to inorganic metal oxide particles (ZnO, TiO2) to prevent agglomeration. This ensures uniform distribution on the skin, maximizing UV scattering and absorption.
Research
Clinical Evidence
High confidence1-3% (active)
Key findings
- 01 Studies indicate 1-3% (active) enhances TiO2 and ZnO efficacy by improving dispersion, boosting SPF, and reducing whiteness for greater transparency.
- 02 Formulations with 3-9% (as supplied) showed stability for 3 months at room temperature and 2 months at 40°C, passing 5 freeze/thaw cycles.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Supplied as a white homogeneous liquid emulsion (~30% solids), it is known for high stability in formulations containing inorganic electrolytes and metal oxides.
Synergies
- Inorganic UV filters (TiO2, ZnO)
Conflicts
- Extremely low pH (below 4.0)
- Cationic surfactants
Safety
Safety Profile
The CIR Expert Panel deems this copolymer safe for use up to 25% in leave-on products, provided the final formulation is non-irritating.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This copolymer is a valuable component for mineral-based formulations, significantly improving SPF performance and the cosmetic elegance of products.
Related
Similar Ingredients
Finding similar ingredients…