Ingredient review
PEG/PPG-10/2 Dimethicone
INCI: PEG/PPG-10/2 Dimethicone
A gentle silicone emulsifier that improves product texture and spreadability without clogging pores.
In plain English
PEG/PPG-10/2 Dimethicone is a modified silicone that helps water and oil mix together in creams and lotions. It makes products feel silky and smooth on the skin, and it's very unlikely to cause irritation or breakouts. You'll find it in many moisturizers, sunscreens, and makeup primers to improve how they feel and perform.
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
PEG/PPG-10/2 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-10/2 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 silicone polymer that has been modified with PEG (polyethylene glycol) and PPG (polypropylene glycol) chains to make it water-friendly. This allows it to act as an emulsifier, helping oil and water ingredients blend into a stable, smooth cream or lotion.
How it works
The PEG/PPG chains make the silicone partially water-soluble, so it can sit at the boundary between water and oil droplets in a formula. This stabilizes the emulsion, preventing separation and giving the product a uniform, silky texture. On skin, it leaves a light, non-greasy film that feels smooth and helps other ingredients spread evenly.
Pros
Silky texture
Creates a smooth, velvety feel on skin that makes products glide on easily and leaves a non-greasy finish.
Gentle for sensitive skin
Has a very low irritation and comedogenic risk, making it suitable for most skin types, including acne-prone skin.
Cons and cautions
Not biodegradable
Like many silicones, this ingredient does not break down easily in the environment, which may be a concern for eco-conscious users.
Potential buildup
With repeated use, especially in leave-on products, it can accumulate on the skin or hair surface, possibly interfering with other product absorption.
Best for
- Anyone who wants a smooth, silky-feeling moisturizer or primer
- People with oily or combination skin who prefer lightweight textures
Use caution if
- Those who prefer silicone-free or fully biodegradable formulations
Usage tips
Safety summary
PEG/PPG-10/2 Dimethicone is considered safe for use in cosmetics at typical concentrations. It has a very low potential for skin irritation or allergic reactions. However, like all silicones, it is not biodegradable, which raises environmental concerns.
Research notes
The Cosmetic Ingredient Review (CIR) panel has evaluated PEG/PPG dimethicones and concluded they are safe for use in cosmetics. Studies show low skin irritation and sensitization potential. Environmental persistence is a known drawback.
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 deemed it safe at typical concentrations.
- Common uses
- Moisturizers, Serums, Sunscreens, Makeup primers
- Environmental note
- Silicones like this one are not readily biodegradable and can accumulate in aquatic environments. Some manufacturers are working on more eco-friendly alternatives.
Good to know
- PEG/PPG-10/2 Dimethicone is considered safe by the Cosmetic Ingredient Review (CIR) panel at typical use levels.
- It is often used in 'silicone-based' primers to create a smooth canvas for makeup.
Common questions
What is PEG/PPG-10/2 Dimethicone in beauty products?
PEG/PPG-10/2 Dimethicone is a modified silicone that helps water and oil mix together in creams and lotions. It makes products feel silky and smooth on the skin, and it's very unlikely to cause irritation or breakouts. You'll find it in many moisturizers, sunscreens, and makeup primers to improve how they feel and perform.
What does PEG/PPG-10/2 Dimethicone do in a beauty product?
The PEG/PPG chains make the silicone partially water-soluble, so it can sit at the boundary between water and oil droplets in a formula. This stabilizes the emulsion, preventing separation and giving the product a uniform, silky texture. On skin, it leaves a light, non-greasy film that feels smooth and helps other ingredients spread evenly.
Is PEG/PPG-10/2 Dimethicone safe for most people?
PEG/PPG-10/2 Dimethicone is considered safe for use in cosmetics at typical concentrations. It has a very low potential for skin irritation or allergic reactions. However, like all silicones, it is not biodegradable, which raises environmental concerns.
Who should be careful with PEG/PPG-10/2 Dimethicone?
Those who prefer silicone-free or fully biodegradable 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.