Ingredient review
Polydimethylsiloxy PPG-13 Butyl Ether Silsesquioxane
INCI: POLYDIMETHYLSILOXY PPG-13 BUTYL ETHER SILSESQUIOXANE
A silicone polymer that helps products glide on smoothly and stay put, but offers no active skincare benefits.
In plain English
This is a man-made silicone ingredient that forms a thin, flexible film on your skin. It helps makeup and skincare products spread easily, feel silky, and last longer without feeling heavy or greasy. Think of it as a lightweight, breathable shield that helps your products stay in place.
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
Polydimethylsiloxy PPG-13 Butyl Ether Silsesquioxane 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 Polydimethylsiloxy PPG-13 Butyl Ether Silsesquioxane.
- 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 hybrid silicone polymer combining polydimethylsiloxane (a common silicone) with PPG-13 butyl ether and silsesquioxane groups. It is a clear, viscous liquid designed to improve the sensory feel and durability of cosmetic formulations.
How it works
When applied, it spreads into a thin, even film that adheres to the skin. This film reduces friction (making products feel silky), helps other ingredients stay on the skin longer, and can provide a subtle water-resistant barrier. It does not penetrate the skin or provide active hydration or anti-aging effects.
Pros
Silky texture
Creates a velvety, smooth feel on skin that makes makeup application effortless and reduces drag.
Long-wear support
Helps foundation and eye makeup stay in place longer by forming a flexible film that resists smudging.
Cons and cautions
No skincare benefit
This ingredient only improves texture and wear; it does not hydrate, soothe, or treat skin concerns.
Removal difficulty
Because it forms a film, it may require a double cleanse or oil-based makeup remover to fully wash off.
Best for
- Anyone wanting a smooth, silky makeup finish
- People with oily skin who prefer a matte or long-wear look
Use caution if
- Those who strictly avoid silicones in their routine
Usage tips
Safety summary
Generally recognized as safe for topical use at typical concentrations. Low irritation and comedogenic potential. No known serious safety concerns, but those avoiding silicones may choose to skip it.
Research notes
Limited peer-reviewed research specifically on this polymer. Safety is inferred from similar silicone compounds that have been reviewed by cosmetic ingredient safety panels (e.g., CIR).
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and other major markets. No specific restrictions beyond general cosmetic safety requirements.
- Common uses
- Foundations, Primers, Sunscreens, Long-wear makeup
- Environmental note
- Silicones like this one are synthetic and not biodegradable. Some concerns exist about their accumulation in the environment, though this specific polymer is less studied.
Good to know
- This ingredient is often found in primers and long-wear foundations for its film-forming ability.
- It is considered non-comedogenic for most skin types, but individual reactions vary.
Common questions
What is Polydimethylsiloxy PPG-13 Butyl Ether Silsesquioxane in beauty products?
This is a man-made silicone ingredient that forms a thin, flexible film on your skin. It helps makeup and skincare products spread easily, feel silky, and last longer without feeling heavy or greasy. Think of it as a lightweight, breathable shield that helps your products stay in place.
What does Polydimethylsiloxy PPG-13 Butyl Ether Silsesquioxane do in a beauty product?
When applied, it spreads into a thin, even film that adheres to the skin. This film reduces friction (making products feel silky), helps other ingredients stay on the skin longer, and can provide a subtle water-resistant barrier. It does not penetrate the skin or provide active hydration or anti-aging effects.
Is Polydimethylsiloxy PPG-13 Butyl Ether Silsesquioxane safe for most people?
Generally recognized as safe for topical use at typical concentrations. Low irritation and comedogenic potential. No known serious safety concerns, but those avoiding silicones may choose to skip it.
Who should be careful with Polydimethylsiloxy PPG-13 Butyl Ether Silsesquioxane?
Those who strictly avoid silicones in their 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.