Ingredient review
Cetearyl Dimethicone/Vinyl Dimethicone Crosspolymer
INCI: CETEARYL DIMETHICONE/VINYL DIMETHICONE CROSSPOLYMER
A gentle silicone polymer that creates a smooth, silky feel on skin and hair without clogging pores or causing irritation.
In plain English
This is a type of silicone that forms a very thin, flexible, and breathable film on your skin or hair. It helps products spread easily, gives a silky-smooth feel, and can help lock in moisture without feeling heavy or greasy. Because it's a crosspolymer (meaning its molecules are linked together in a net-like structure), it stays on the surface and doesn't absorb into the skin, making it very unlikely to cause breakouts or irritation.
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
Cetearyl Dimethicone/Vinyl 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 Cetearyl Dimethicone/Vinyl 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 made by crosslinking cetearyl dimethicone with vinyl dimethicone. The crosslinking creates a three-dimensional network that gives it unique film-forming and texture-enhancing properties.
How it works
When applied, it forms a thin, flexible, and breathable film on the surface of the skin or hair. This film smooths out rough texture, reduces friction, and helps prevent moisture loss by acting as a gentle barrier. It also improves the spreadability and feel of other ingredients in the formula.
Pros
Silky, non-greasy feel
Leaves skin and hair feeling smooth and soft without a heavy or oily residue, making it ideal for lightweight moisturizers and primers.
Very low irritation and comedogenic risk
Because it stays on the surface and doesn't penetrate pores, it's unlikely to cause breakouts or irritation, even for sensitive or acne-prone skin.
Cons and cautions
Not biodegradable
As a synthetic silicone polymer, it does not break down easily in the environment, which may be a concern for eco-conscious consumers.
Can cause buildup on hair
If used frequently in hair products without proper cleansing, it can accumulate and leave hair feeling heavy or dull over time.
Best for
- Anyone looking for a lightweight, non-greasy moisturizing feel
- People with oily or combination skin who want a smooth finish without clogging pores
- Those with sensitive skin who need gentle, low-irritation ingredients
Use caution if
- Individuals who strictly avoid all synthetic silicones for environmental or personal reasons
Usage tips
Safety summary
Cetearyl Dimethicone/Vinyl Dimethicone Crosspolymer is considered safe for use in cosmetics. It has very low irritation and comedogenic potential, making it suitable for sensitive and acne-prone skin. Regulatory bodies like the CIR have reviewed similar ingredients and found them safe at typical use levels.
Research notes
While specific studies on this exact crosspolymer are limited, the broader class of silicone crosspolymers has been evaluated for safety and efficacy. They are well-tolerated on skin and provide effective film-forming and texture-enhancing properties without significant irritation or sensitization risks.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics worldwide. The Cosmetic Ingredient Review (CIR) panel has reviewed similar silicone crosspolymers and found them safe for use in cosmetic products at typical concentrations.
- Common uses
- Moisturizers, Serums, Sunscreens, Primers, Hair conditioners, Styling products
- Environmental note
- Silicone crosspolymers are not biodegradable and may persist in the environment. However, they are used in small amounts and are not considered bioaccumulative.
Good to know
- This ingredient is often used in 'silicone-free' formulas because it is a crosspolymer and behaves differently from traditional linear silicones.
- It is considered safe by major regulatory bodies including the Cosmetic Ingredient Review (CIR) panel.
Common questions
What is Cetearyl Dimethicone/Vinyl Dimethicone Crosspolymer in beauty products?
This is a type of silicone that forms a very thin, flexible, and breathable film on your skin or hair. It helps products spread easily, gives a silky-smooth feel, and can help lock in moisture without feeling heavy or greasy. Because it's a crosspolymer (meaning its molecules are linked together in a net-like structure), it stays on the surface and doesn't absorb into the skin, making it very unlikely to cause breakouts or irritation.
What does Cetearyl Dimethicone/Vinyl Dimethicone Crosspolymer do in a beauty product?
When applied, it forms a thin, flexible, and breathable film on the surface of the skin or hair. This film smooths out rough texture, reduces friction, and helps prevent moisture loss by acting as a gentle barrier. It also improves the spreadability and feel of other ingredients in the formula.
Is Cetearyl Dimethicone/Vinyl Dimethicone Crosspolymer safe for most people?
Cetearyl Dimethicone/Vinyl Dimethicone Crosspolymer is considered safe for use in cosmetics. It has very low irritation and comedogenic potential, making it suitable for sensitive and acne-prone skin. Regulatory bodies like the CIR have reviewed similar ingredients and found them safe at typical use levels.
Who should be careful with Cetearyl Dimethicone/Vinyl Dimethicone Crosspolymer?
Individuals who strictly avoid all synthetic silicones for environmental or personal reasons
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.