Ingredient review
Polysilicone-12
INCI: Polysilicone-12
Polysilicone-12 is a gentle silicone that gives skin a silky, smooth finish and helps makeup last longer without clogging pores.
In plain English
Polysilicone-12 is a type of silicone that forms a thin, flexible film on your skin. This film feels silky and smooth, helps your makeup stay in place longer, and can make your skin look softer and more even. It's very gentle and unlikely to cause breakouts or irritation, making it a common ingredient in primers, foundations, and sunscreens.
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
Polysilicone-12 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 Polysilicone-12.
- 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
Polysilicone-12 is a synthetic silicone polymer. It is a large molecule made of repeating silicon-oxygen units with organic side chains, designed to create a flexible, breathable film on the skin.
How it works
When applied, Polysilicone-12 forms a thin, even film on the skin's surface. This film smooths out fine lines and pores, provides a velvety texture, and helps other ingredients (like pigments in foundation) adhere better and last longer. It also acts as a skin conditioner, leaving a soft, non-greasy feel.
Pros
Smooths skin texture
Polysilicone-12 fills in fine lines and pores, giving skin a soft-focus, airbrushed look that is especially helpful under makeup.
Improves product wear
Its film-forming ability helps foundation and concealer stay put for hours without fading or creasing, reducing the need for touch-ups.
Cons and cautions
Not biodegradable
As a synthetic silicone, Polysilicone-12 is not readily biodegradable, which may be a concern for environmentally conscious consumers.
Can cause pilling
If layered over water-based products or with incompatible formulas, Polysilicone-12 may ball up or pill, disrupting your makeup application.
Best for
- Anyone wanting a smooth, poreless-looking complexion
- People who wear long-lasting makeup or need a good primer
Use caution if
- Those who strictly avoid silicones in their skincare or makeup
Usage tips
Safety summary
Polysilicone-12 has a low irritation and comedogenic risk. It is considered safe for use in cosmetics at typical concentrations, with no known significant health concerns.
Research notes
Research on Polysilicone-12 is limited but consistent with other film-forming silicones. Safety assessments by the Cosmetic Ingredient Review (CIR) support its use in leave-on and rinse-off products.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets. The Cosmetic Ingredient Review (CIR) panel has deemed it safe as used.
- Common uses
- Foundations, Primers, Sunscreens, Moisturizers
- Environmental note
- Polysilicone-12 is a synthetic silicone that is not biodegradable. Some silicones can accumulate in the environment, though their impact is still being studied.
Good to know
- Polysilicone-12 is considered safe by major regulatory bodies and is non-comedogenic for most skin types.
- It is often used in combination with other silicones to achieve a specific texture or finish.
Common questions
What is Polysilicone-12 in beauty products?
Polysilicone-12 is a type of silicone that forms a thin, flexible film on your skin. This film feels silky and smooth, helps your makeup stay in place longer, and can make your skin look softer and more even. It's very gentle and unlikely to cause breakouts or irritation, making it a common ingredient in primers, foundations, and sunscreens.
What does Polysilicone-12 do in a beauty product?
When applied, Polysilicone-12 forms a thin, even film on the skin's surface. This film smooths out fine lines and pores, provides a velvety texture, and helps other ingredients (like pigments in foundation) adhere better and last longer. It also acts as a skin conditioner, leaving a soft, non-greasy feel.
Is Polysilicone-12 safe for most people?
Polysilicone-12 has a low irritation and comedogenic risk. It is considered safe for use in cosmetics at typical concentrations, with no known significant health concerns.
Who should be careful with Polysilicone-12?
Those who strictly avoid silicones in their skincare or makeup
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.