Ingredient review
PEG-12 Dimethicone Crosspolymer
INCI: PEG-12 Dimethicone Crosspolymer
A gentle silicone polymer that creates a smooth, velvety feel on skin without clogging pores or causing irritation.
In plain English
PEG-12 Dimethicone Crosspolymer is a type of silicone that forms a thin, flexible film on your skin. It helps products glide on smoothly, reduces stickiness, and can make your skin feel silky and soft. It's often used in moisturizers, sunscreens, and makeup primers to improve texture and wear. Because it's a large molecule, it sits mostly on the surface and is unlikely to penetrate or irritate the skin.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
PEG-12 Dimethicone Crosspolymer is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging PEG-12 Dimethicone Crosspolymer.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A synthetic silicone polymer created by crosslinking dimethicone (a common silicone) with PEG (polyethylene glycol) chains. This structure gives it a gel-like consistency and film-forming ability.
How it works
When applied, it spreads into an even, breathable film that smooths the skin's surface, helps other ingredients stay in place, and provides a silky, non-greasy feel. It also can improve water resistance in sunscreens and long-wear makeup.
Pros
Non-irritating
Large molecular size means it stays on the skin's surface, making it very unlikely to cause irritation or clog pores.
Improves product feel
Gives a smooth, velvety texture that reduces greasiness and helps makeup or sunscreen apply evenly.
Cons and cautions
Silicone-based
Some people prefer to avoid silicones for environmental or personal reasons, and it may not rinse off easily with just water.
Can feel heavy for some
While rare, a small number of users report a temporary 'slippery' sensation that can feel heavy if over-applied.
Best for
- People who want a silky, non-greasy finish
- Those using long-wear makeup or water-resistant sunscreen
Use caution if
- Individuals who prefer silicone-free routines
- Those with very sensitive skin that reacts to film formers
Usage tips
Safety summary
PEG-12 Dimethicone Crosspolymer has a strong safety profile with very low irritation and comedogenic risk. It is considered safe for most skin types, including sensitive skin.
Research notes
The Cosmetic Ingredient Review (CIR) panel has reviewed dimethicone crosspolymers and found them safe for cosmetic use. No significant toxicity or irritation has been reported in studies.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics worldwide, including by the FDA and EU CosIng database. The CIR panel has deemed it safe at typical concentrations.
- Common uses
- Moisturizers, Sunscreens, Primers, Color Cosmetics
- Environmental note
- Silicones like this one are not biodegradable and can accumulate in the environment. Some regions have restrictions on rinse-off silicones, but this is primarily used in leave-on products.
Good to know
- PEG-12 Dimethicone Crosspolymer is considered safe by the Cosmetic Ingredient Review (CIR) panel.
- It is often used in combination with other silicones to fine-tune texture.
Common questions
What is PEG-12 Dimethicone Crosspolymer in beauty products?
PEG-12 Dimethicone Crosspolymer is a type of silicone that forms a thin, flexible film on your skin. It helps products glide on smoothly, reduces stickiness, and can make your skin feel silky and soft. It's often used in moisturizers, sunscreens, and makeup primers to improve texture and wear. Because it's a large molecule, it sits mostly on the surface and is unlikely to penetrate or irritate the skin.
What does PEG-12 Dimethicone Crosspolymer do in a beauty product?
When applied, it spreads into an even, breathable film that smooths the skin's surface, helps other ingredients stay in place, and provides a silky, non-greasy feel. It also can improve water resistance in sunscreens and long-wear makeup.
Is PEG-12 Dimethicone Crosspolymer safe for most people?
PEG-12 Dimethicone Crosspolymer has a strong safety profile with very low irritation and comedogenic risk. It is considered safe for most skin types, including sensitive skin.
Who should be careful with PEG-12 Dimethicone Crosspolymer?
Individuals who prefer silicone-free routines Those with very sensitive skin that reacts to film formers
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.