Ingredient review
PEG/PPG-20/23 Dimethicone
INCI: PEG/PPG-20/23 Dimethicone
A versatile silicone emulsifier that helps create smooth, spreadable formulas without greasiness, but may not suit those avoiding silicones.
In plain English
PEG/PPG-20/23 Dimethicone is a modified silicone that acts like a bridge between water and oil in a product. It helps ingredients mix evenly, gives a silky feel on skin, and can improve how a product spreads. Think of it as a helper that makes creams and lotions feel lightweight and smooth, without leaving a heavy or sticky layer.
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-20/23 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-20/23 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 modified with polyethylene glycol (PEG) and polypropylene glycol (PPG) chains, making it water-dispersible while retaining silicone's smooth feel. It functions as a non-ionic emulsifier and skin conditioning agent.
How it works
Its dual structure allows it to stabilize mixtures of water and oil (or silicone) phases, preventing separation. On skin, it forms a thin, breathable film that reduces friction, imparts a silky texture, and can help other ingredients spread more evenly.
Pros
Smooth texture
Gives products a silky, non-sticky feel that many people find pleasant and easy to apply.
Formula stability
Helps keep water and oil ingredients mixed, so your product stays consistent and effective over time.
Cons and cautions
Environmental persistence
Silicones can accumulate in the environment; this modified version may degrade more slowly than natural alternatives.
Manufacturing concerns
PEG components may contain trace impurities like ethylene oxide, though reputable brands use purified grades.
Best for
- People who enjoy lightweight, silky moisturizers
- Those looking for stable, well-mixed formulas
Use caution if
- Individuals strictly avoiding silicones
- Those concerned about PEG-related manufacturing impurities
Usage tips
Safety summary
PEG/PPG-20/23 Dimethicone has low irritation and comedogenic potential. Regulatory panels consider it safe at typical cosmetic concentrations. As with any PEG-containing ingredient, quality control in manufacturing is important to minimize impurities.
Research notes
Limited specific studies on this exact compound, but the broader class of PEG/PPG dimethicones is well-studied for safety and function. They are effective emulsifiers with low skin toxicity.
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 similar PEG/PPG dimethicones safe as used.
- Common uses
- Moisturizers, Serums, Sunscreens, Foundations, Hair Conditioners
- Environmental note
- Silicones are generally not biodegradable; however, this modified version may have slightly different environmental behavior. Check brand sustainability policies for details.
Good to know
- PEG/PPG-20/23 Dimethicone is considered safe in cosmetics at typical use levels by major regulatory bodies.
- It is often used in 'silicone feel' products that aim to be lightweight.
Common questions
What is PEG/PPG-20/23 Dimethicone in beauty products?
PEG/PPG-20/23 Dimethicone is a modified silicone that acts like a bridge between water and oil in a product. It helps ingredients mix evenly, gives a silky feel on skin, and can improve how a product spreads. Think of it as a helper that makes creams and lotions feel lightweight and smooth, without leaving a heavy or sticky layer.
What does PEG/PPG-20/23 Dimethicone do in a beauty product?
Its dual structure allows it to stabilize mixtures of water and oil (or silicone) phases, preventing separation. On skin, it forms a thin, breathable film that reduces friction, imparts a silky texture, and can help other ingredients spread more evenly.
Is PEG/PPG-20/23 Dimethicone safe for most people?
PEG/PPG-20/23 Dimethicone has low irritation and comedogenic potential. Regulatory panels consider it safe at typical cosmetic concentrations. As with any PEG-containing ingredient, quality control in manufacturing is important to minimize impurities.
Who should be careful with PEG/PPG-20/23 Dimethicone?
Individuals strictly avoiding silicones Those concerned about PEG-related manufacturing impurities
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.