Ingredient review
PEG/PPG-6/11 Dimethicone
INCI: PEG/PPG-6/11 Dimethicone
A gentle silicone that makes products feel silky and spread easily, but may not suit those avoiding silicones entirely.
In plain English
This is a type of silicone that helps skincare and haircare products glide on smoothly without feeling greasy. It leaves a soft, velvety finish and can help reduce frizz in hair. Because it's water-soluble, it rinses off more easily than some other silicones, making it less likely to cause buildup.
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
PEG/PPG-6/11 Dimethicone 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 PEG/PPG-6/11 Dimethicone.
- 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 modified with polyethylene glycol (PEG) and polypropylene glycol (PPG) chains to make it water-dispersible. It is a clear, viscous liquid used in cosmetics for its emollient and film-forming properties.
How it works
It forms a thin, breathable film on the skin or hair surface, which smooths the texture, reduces friction, and helps lock in moisture. The PEG/PPG modification allows it to be rinsed away with water, reducing the risk of buildup compared to non-water-soluble silicones.
Pros
Silky feel without grease
Creates a smooth, velvety texture on skin and hair that doesn't feel oily, making it ideal for primers and lightweight moisturizers.
Water-soluble and easy to rinse
Unlike some silicones that require harsh cleansers to remove, this ingredient washes off with water, reducing the chance of buildup on skin or hair.
Cons and cautions
Not for silicone-free routines
If you avoid silicones due to personal preference or environmental concerns, this ingredient won't fit your regimen.
May feel heavy on very oily skin
In high concentrations, it can add a slight film that might feel too occlusive for those with extremely oily or acne-prone skin.
Best for
- People who want a smooth, silky finish in moisturizers or primers
- Those with dry or frizz-prone hair looking for a lightweight conditioner
Use caution if
- Individuals who prefer silicone-free products for personal or environmental reasons
Usage tips
Safety summary
PEG/PPG-6/11 Dimethicone is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential. However, as with all silicones, some consumers choose to avoid them for environmental reasons.
Research notes
Safety data is based on the broader class of PEG/PPG dimethicones reviewed by the Cosmetic Ingredient Review panel, which found them safe for cosmetic use. Specific studies on this exact polymer are limited, but its chemical structure is well-understood.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions. The Cosmetic Ingredient Review (CIR) panel has reviewed similar PEG/PPG silicones and found them safe as used.
- Common uses
- Moisturizers, Serums, Primers, Hair Conditioners, Styling Products
- Environmental note
- Silicones are generally not biodegradable, but water-soluble versions like this one may have a lower environmental persistence than non-soluble silicones.
Good to know
- This silicone is often used in combination with other silicones to fine-tune texture and feel.
- It is considered safe by cosmetic safety panels at typical use levels.
Common questions
What is PEG/PPG-6/11 Dimethicone in beauty products?
This is a type of silicone that helps skincare and haircare products glide on smoothly without feeling greasy. It leaves a soft, velvety finish and can help reduce frizz in hair. Because it's water-soluble, it rinses off more easily than some other silicones, making it less likely to cause buildup.
What does PEG/PPG-6/11 Dimethicone do in a beauty product?
It forms a thin, breathable film on the skin or hair surface, which smooths the texture, reduces friction, and helps lock in moisture. The PEG/PPG modification allows it to be rinsed away with water, reducing the risk of buildup compared to non-water-soluble silicones.
Is PEG/PPG-6/11 Dimethicone safe for most people?
PEG/PPG-6/11 Dimethicone is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential. However, as with all silicones, some consumers choose to avoid them for environmental reasons.
Who should be careful with PEG/PPG-6/11 Dimethicone?
Individuals who prefer silicone-free products for personal or environmental 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.