C30-45 Alkyl Dimethicone

C30-45 Alkyl Dimethicone is an alkyl-modified silicone polymer with long-chain side groups. In cosmetics it improves slip, spreadability, and texture, and boosts wear and rub resistance.
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Snapshot

Overview
A silicone that smooths application and boosts makeup wear.
Category
Skin Conditioning, Barrier Support, Tone/Texture
Type
Film Former

Ratings

Overall Rating

Good

Comedogenic Risk

None

Considered non-comedogenic, with little to no likelihood of clogging pores.

Is C30-45 Alkyl Dimethicone a Good Ingredient?

It delivers slip and wear-improving, soft-focus film formation with high stability and low irritation potential, which earns a Good rating; its inert silicone backbone supports elegant textures without frequent sensitization issues.

Skin Benefits

Gives a cushioned glide and soft-focus feel while helping products stay comfortable on skin through the day, and helps reduce drag and patchiness for a more even finish.

Uses in Skincare & Cosmetics

Often found in primers, liquid foundations, and sunscreens, and also used in lightweight moisturizers and stick formats to improve payoff.

Safety

Typically non-irritating and low sensitizing. A minority may find it occlusive or heat-trapping in very oily climates; discontinue if congestion appears. Removes best with a thorough cleanser.