What it is
Dimethicone/Methicone Copolymer is a silicone copolymer that combines dimethicone and methicone units. It is widely used as a surface treatment to coat pigments and powders, improving their dispersion and water-repellent feel, and it can act as a film-forming, skin-conditioning silicone. In sunscreens it is commonly associated with treated mineral particles and powder phases.
Safety & warnings
Silicone polymers of this type are generally well tolerated and non-sensitizing in topical use. They are not recognized fragrance allergens.
Origin & sourcing
It is a synthetic silicone polymer.
Questions everyone asks
Why is Dimethicone/Methicone Copolymer used in sunscreens?
It is often used to surface-treat pigments and powders for better dispersion and feel, and as a conditioning, film-forming silicone.
Is it a silicone?
Yes, it is a silicone copolymer made from dimethicone and methicone units.