Ingredient review
Dimethicone Crosspolymer Blend
INCI: DIMETHICONE/VINYLTRIMETHYLSILOXYSILICATE CROSSPOLYMER
A gentle silicone powder that gives a silky finish and helps makeup stay put without clogging pores.
In plain English
This is a synthetic silicone ingredient that forms a thin, flexible film on the skin. It feels silky and smooth, helps makeup last longer, and can absorb excess oil. It's often used in primers and foundations to create a blurring effect on pores and fine lines. Because it's a crosspolymer (a network of silicone molecules), it doesn't easily sink into pores, making it unlikely to cause breakouts for most people.
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
Dimethicone Crosspolymer Blend 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 Dimethicone Crosspolymer Blend.
- 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 crosslinked silicone polymer made by combining dimethicone with vinyltrimethylsiloxysilicate. The result is a powder-like material that forms a breathable, water-resistant film on the skin.
How it works
When applied, it spreads into a thin, even layer that smooths the skin's surface. The film helps lock in other ingredients, reduces water loss, and provides a soft-focus effect by scattering light. It also helps makeup resist smudging and fading.
Pros
Silky, non-greasy feel
Creates a velvety texture that helps makeup glide on and reduces shine without feeling oily.
Long-wear support
Forms a flexible film that helps foundation and concealer stay in place for hours without creasing.
Cons and cautions
Environmental persistence
As a synthetic silicone, it does not break down easily in nature and can contribute to microplastic pollution.
May feel drying over time
On very dry skin, the film-forming effect can sometimes emphasize flakiness or feel tight by the end of the day.
Best for
- People who want a smooth makeup base
- Those with normal to combination skin looking for a silky finish
Use caution if
- Those who prefer silicone-free or fully natural routines
- Individuals with very dry skin who may find it too mattifying
Usage tips
Safety summary
Considered safe for topical use with very low irritation and comedogenic potential. No known health risks from normal cosmetic use.
Research notes
Limited independent studies specific to this crosspolymer, but silicones in general have a strong safety record. The Cosmetic Ingredient Review (CIR) panel has deemed similar silicone polymers safe as used.
Common label clues
- Typical concentration
- 1–10%
- Regulatory status
- Approved for use in cosmetics globally, including by the U.S. FDA and EU CosIng database, with no concentration restrictions.
- Common uses
- Primers, Foundations, Sunscreens, Long-wear makeup
- Environmental note
- Silicone crosspolymers are not biodegradable and may persist in water systems. Some brands are moving toward bio-based alternatives.
Good to know
- Often listed near the top of ingredient lists in primers and long-wear foundations.
- Can be removed with oil-based cleansers or micellar water.
Common questions
What is Dimethicone Crosspolymer Blend in beauty products?
This is a synthetic silicone ingredient that forms a thin, flexible film on the skin. It feels silky and smooth, helps makeup last longer, and can absorb excess oil. It's often used in primers and foundations to create a blurring effect on pores and fine lines. Because it's a crosspolymer (a network of silicone molecules), it doesn't easily sink into pores, making it unlikely to cause breakouts for most people.
What does Dimethicone Crosspolymer Blend do in a beauty product?
When applied, it spreads into a thin, even layer that smooths the skin's surface. The film helps lock in other ingredients, reduces water loss, and provides a soft-focus effect by scattering light. It also helps makeup resist smudging and fading.
Is Dimethicone Crosspolymer Blend safe for most people?
Considered safe for topical use with very low irritation and comedogenic potential. No known health risks from normal cosmetic use.
Who should be careful with Dimethicone Crosspolymer Blend?
Those who prefer silicone-free or fully natural routines Individuals with very dry skin who may find it too mattifying
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.