What it is
This ingredient is a dimethicone backbone modified with PEG/PPG polyether side chains, making it amphiphilic. It functions mainly as an emulsifier that stabilizes water-in-silicone and water-in-oil emulsions, a common architecture for smooth, lightweight sunscreens. It also imparts silky slip and helps disperse pigments and mineral filters.
Safety & warnings
Silicone polyether emulsifiers of this type are generally well tolerated and considered low-irritation. They are not associated with the common fragrance allergens and are typically regarded as low comedogenic risk.
Origin & sourcing
Synthetic silicone-polyether copolymer.
Questions everyone asks
What does this silicone emulsifier do?
It stabilizes water-in-silicone emulsions and gives the formula a smooth, silky feel while helping disperse filters and pigments.
Is it a silicone?
Yes, it is a silicone backbone modified with polyether chains so it can act as an emulsifier.