Ingredient review
Bis-Diisopropanolamino-PG-Propyl Dimethicone/Bis-Isobutyl PEG-14 Copolymer
INCI: BIS-DIISOPROPANOLAMINO-PG-PROPYL DIMETHICONE/BIS-ISOBUTYL PEG-14 COPOLYMER
A gentle silicone copolymer that helps products spread smoothly and leaves a soft, non-greasy film on skin or hair.
In plain English
This ingredient is a type of silicone that forms a thin, flexible film on your skin or hair. It helps other ingredients spread evenly, makes the product feel silky, and can provide light water resistance. Unlike some older silicones, it's designed to be easier to wash off and less likely to build up.
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
Bis-Diisopropanolamino-PG-Propyl Dimethicone/Bis-Isobutyl PEG-14 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-Diisopropanolamino-PG-Propyl Dimethicone/Bis-Isobutyl PEG-14 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 synthetic silicone copolymer modified with amino and PEG groups. The amino part helps it stick to hair or skin, while the PEG part makes it water-dispersible and easier to rinse away.
How it works
When applied, it spreads into a uniform, breathable film that smooths the surface of skin or hair. This film reduces friction (making hair less tangled), improves the feel of the product, and can help other ingredients stay in place longer.
Pros
Smooth, silky feel
Creates a soft, velvety finish on skin and hair without heavy greasiness, improving the sensory experience of the product.
Easy to wash off
The PEG modification makes this silicone more water-dispersible than traditional dimethicone, reducing buildup concerns.
Cons and cautions
Potential buildup
Even with improved rinsability, frequent use without clarifying shampoo can still lead to some residue on hair over time.
Synthetic origin
As a lab-made silicone, it may not fit natural or minimalist skincare routines.
Best for
- People with dry or frizzy hair seeking smoothness
- Anyone wanting a silky, non-greasy skin feel from lotions or sunscreens
Use caution if
- Those avoiding all silicones for personal preference
- People with very fine hair who find silicones weigh it down
Usage tips
Safety summary
Low risk of irritation or comedogenicity. Widely used in cosmetics with a strong safety record. Some consumers choose to avoid silicones for personal or environmental reasons.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) panel have found silicone copolymers like this one safe for use in cosmetics at typical concentrations. No significant toxicity or sensitization concerns have been identified.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics globally, including by the EU CosIng database and US FDA (as part of cosmetic ingredients generally). No specific restrictions.
- Common uses
- Hair conditioners, Styling products, Sunscreens, Color cosmetics, Skin lotions
- Environmental note
- PEG-modified silicones are generally considered more environmentally friendly than non-PEG versions, but full biodegradability data is limited.
Good to know
- This ingredient is often found in leave-in conditioners and heat protectants.
- It is considered biodegradable and safer for aquatic life compared to some cyclic silicones.
Common questions
What is Bis-Diisopropanolamino-PG-Propyl Dimethicone/Bis-Isobutyl PEG-14 Copolymer in beauty products?
This ingredient is a type of silicone that forms a thin, flexible film on your skin or hair. It helps other ingredients spread evenly, makes the product feel silky, and can provide light water resistance. Unlike some older silicones, it's designed to be easier to wash off and less likely to build up.
What does Bis-Diisopropanolamino-PG-Propyl Dimethicone/Bis-Isobutyl PEG-14 Copolymer do in a beauty product?
When applied, it spreads into a uniform, breathable film that smooths the surface of skin or hair. This film reduces friction (making hair less tangled), improves the feel of the product, and can help other ingredients stay in place longer.
Is Bis-Diisopropanolamino-PG-Propyl Dimethicone/Bis-Isobutyl PEG-14 Copolymer safe for most people?
Low risk of irritation or comedogenicity. Widely used in cosmetics with a strong safety record. Some consumers choose to avoid silicones for personal or environmental reasons.
Who should be careful with Bis-Diisopropanolamino-PG-Propyl Dimethicone/Bis-Isobutyl PEG-14 Copolymer?
Those avoiding all silicones for personal preference People with very fine hair who find silicones weigh it down
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.