Ingredient review
Bis-Isobutyl PEG-24/PPG-7/Dimethicone Copolymer
INCI: BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER
A gentle silicone emulsifier that improves product texture and stability without common irritation.
In plain English
This ingredient is a silicone-based helper that allows water and oil to mix smoothly in a product. It gives creams and lotions a silky, lightweight feel and helps them spread easily on your skin. It's commonly used in sunscreens and foundations to improve texture and water resistance.
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
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Bis-Isobutyl PEG-24/PPG-7/Dimethicone Copolymer 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 Bis-Isobutyl PEG-24/PPG-7/Dimethicone Copolymer.
- 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 modified silicone polymer with PEG and PPG chains that acts as an emulsifier, allowing water and oil phases to blend into a stable, uniform cream or lotion.
How it works
It sits at the boundary between water and oil droplets, reducing surface tension so they mix instead of separating. This creates a smooth, stable emulsion that feels lightweight and non-greasy on the skin.
Pros
Gentle on skin
Has a low irritation and comedogenic risk, making it suitable for most skin types, including sensitive skin.
Improves product feel
Gives creams and sunscreens a silky, lightweight texture that spreads easily and doesn't feel heavy or sticky.
Cons and cautions
Silicone-based
If you avoid silicones for personal or environmental reasons, this ingredient won't fit your routine.
May require double cleansing
Because it's a silicone emulsifier, it can be resistant to single-step water cleansing, so an oil-based cleanser may be needed to remove it fully.
Best for
- People who enjoy lightweight, silky moisturizers or sunscreens
- Those with normal to combination skin looking for a non-greasy finish
Use caution if
- Individuals strictly avoiding all silicones or PEG compounds
- Those who prefer oil-only or water-only simple formulations
Usage tips
Safety summary
Bis-Isobutyl PEG-24/PPG-7/Dimethicone Copolymer is considered safe for cosmetic use with low irritation and comedogenic potential. It is not known to cause allergic reactions in most people. As with any ingredient, patch test if you have sensitive skin.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) and other bodies have found silicone copolymers like this one to be safe in cosmetics. Research focuses on their function as emulsifiers and their low potential for skin irritation.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and other major markets. The Cosmetic Ingredient Review (CIR) panel has evaluated similar silicone copolymers and found them safe at typical concentrations.
- Common uses
- Moisturizers, Sunscreens, Foundations, Serums
- Environmental note
- Silicone compounds can be slow to biodegrade. Some manufacturers are moving toward biodegradable alternatives, but this ingredient is still widely used.
Good to know
- This ingredient is often found in water-resistant sunscreens and long-wear foundations.
- It is considered safe by major cosmetic safety panels at typical use levels.
Common questions
What is Bis-Isobutyl PEG-24/PPG-7/Dimethicone Copolymer in beauty products?
This ingredient is a silicone-based helper that allows water and oil to mix smoothly in a product. It gives creams and lotions a silky, lightweight feel and helps them spread easily on your skin. It's commonly used in sunscreens and foundations to improve texture and water resistance.
What does Bis-Isobutyl PEG-24/PPG-7/Dimethicone Copolymer do in a beauty product?
It sits at the boundary between water and oil droplets, reducing surface tension so they mix instead of separating. This creates a smooth, stable emulsion that feels lightweight and non-greasy on the skin.
Is Bis-Isobutyl PEG-24/PPG-7/Dimethicone Copolymer safe for most people?
Bis-Isobutyl PEG-24/PPG-7/Dimethicone Copolymer is considered safe for cosmetic use with low irritation and comedogenic potential. It is not known to cause allergic reactions in most people. As with any ingredient, patch test if you have sensitive skin.
Who should be careful with Bis-Isobutyl PEG-24/PPG-7/Dimethicone Copolymer?
Individuals strictly avoiding all silicones or PEG compounds Those who prefer oil-only or water-only simple formulations
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.