Ingredient review
Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer
INCI: VINYL DIMETHICONE/METHICONE SILSESQUIOXANE CROSSPOLYMER
A silicone powder that gives a silky, matte finish and helps products glide on smoothly without clogging pores.
In plain English
This is a silicone-based powder that feels incredibly silky and smooth on the skin. It's often used in makeup primers, foundations, and powders to create a soft-focus, matte finish and help products spread easily. It also absorbs excess oil and can help other ingredients form a light, breathable film on 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
Vinyl Dimethicone/Methicone Silsesquioxane 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 Vinyl Dimethicone/Methicone Silsesquioxane 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 that forms tiny, spherical particles. It is a crosspolymer, meaning the silicone chains are linked together to create a stable, powder-like structure.
How it works
It acts as a texture enhancer and absorbent. The spherical particles roll over the skin, creating a smooth, silky feel. They also absorb excess oil and sebum, reducing shine. Additionally, it can form a thin, breathable film that helps other ingredients stay in place and improves the wear of makeup.
Pros
Silky, smooth feel
Creates a luxurious, velvety texture that makes products feel pleasant to apply and wear.
Oil absorption
Helps control shine and absorb excess oil, making it great for oily skin types and long-wear makeup.
Cons and cautions
Silicone concerns
Some people prefer to avoid silicones due to environmental persistence or personal preference, though this ingredient is generally considered safe.
Potential dryness
For very dry skin, the oil-absorbing properties might feel slightly drying if used in high concentrations.
Best for
- People with oily or combination skin who want a matte finish
- Anyone looking for a primer or foundation that glides on smoothly and blurs imperfections
Use caution if
- Those who strictly avoid silicones in their skincare or makeup routine
Usage tips
Safety summary
Considered safe for use in cosmetics at typical concentrations. It is non-irritating and non-comedogenic. The Cosmetic Ingredient Review (CIR) panel has reviewed similar silicone polymers and found them safe.
Research notes
There is limited direct research on this specific crosspolymer, but it is part of a well-studied class of silicone polymers used for texture and oil control. Safety assessments by industry panels support its use in cosmetics.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics globally, including by the FDA and EU CosIng database, with no known restrictions.
- Common uses
- Primers, Foundations, Sunscreens, Moisturizers, Powders
- Environmental note
- Silicones are generally not biodegradable and can accumulate in the environment. However, this specific crosspolymer form is a solid powder and may have different environmental behavior than liquid silicones.
Good to know
- This ingredient is often used in powder formulations to improve feel and application.
- It is considered non-comedogenic, meaning it is unlikely to clog pores.
Common questions
What is Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer in beauty products?
This is a silicone-based powder that feels incredibly silky and smooth on the skin. It's often used in makeup primers, foundations, and powders to create a soft-focus, matte finish and help products spread easily. It also absorbs excess oil and can help other ingredients form a light, breathable film on the skin.
What does Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer do in a beauty product?
It acts as a texture enhancer and absorbent. The spherical particles roll over the skin, creating a smooth, silky feel. They also absorb excess oil and sebum, reducing shine. Additionally, it can form a thin, breathable film that helps other ingredients stay in place and improves the wear of makeup.
Is Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer safe for most people?
Considered safe for use in cosmetics at typical concentrations. It is non-irritating and non-comedogenic. The Cosmetic Ingredient Review (CIR) panel has reviewed similar silicone polymers and found them safe.
Who should be careful with Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer?
Those who strictly avoid silicones in their skincare or makeup routine
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.