PEG / PPG-18 / 18 Dimethicone

PEG/PPG-18/18 Dimethicone is a silicone copolymer modified with polyethylene glycol and polypropylene glycol segments. It stabilizes oil-in-water systems, improves spreadability, cuts tack, and gives a smooth, lightweight finish.
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Ingredient Snapshot

Overview
A silicone blend that gives skin a smooth, lightweight, non-greasy finish.
Category
Emulsifying, Skin Conditioning
Type
Emulsifier

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Provides a silky, non-greasy skin feel and helps products glide on evenly. Can visually smooth uneven areas by improving how formulas lay on the skin.

Uses In Skincare & Cosmetics

Used in serums, primers, and lightweight moisturizers to improve slip and sensory elegance; also found in sunscreens to make application feel effortless.

Comedogenic Rating

This ingredient has a comedogenic rating of 0. It is considered non-comedogenic and has little to no likelihood of clogging pores.

Safety

Typically well tolerated with low irritation potential; sensitization is uncommon but possible for those reactive to silicones or PEGs. Not known to be photosensitizing. Suitable for most skin types, including in leave-on use.

Is PEG / PPG-18 / 18 Dimethicone a Good Ingredient?

Rated Good because it reliably improves slip and stabilizes emulsions while remaining stable and generally low-irritating as a silicone copolymer. It improves spreadability and finish without adding heaviness, but its role stays formulation-focused rather than treatment-oriented, which is why it isn't rated higher.

Products with PEG / PPG-18 / 18 Dimethicone

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