Ingredient review
PPG-27 Dimethicone
INCI: PPG-27 Dimethicone
A gentle silicone that helps products spread smoothly and leaves skin feeling soft without clogging pores.
In plain English
PPG-27 Dimethicone is a type of silicone that feels silky on the skin. It helps other ingredients spread evenly, creates a light barrier that locks in moisture, and gives products a smooth, non-greasy finish. It's often used in sunscreens and primers to improve wear 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
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
PPG-27 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 PPG-27 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 (a long-chain molecule) that acts as an emollient and film former. It is part of the dimethicone family, modified with propylene glycol (PPG) to make it more compatible with water-based formulas.
How it works
When applied, it forms a thin, breathable film on the skin's surface. This film reduces water loss (keeping skin hydrated), helps other ingredients stay put, and gives a smooth, velvety feel. It also helps products resist water and sweat.
Pros
Smooth application
Helps creams and sunscreens spread evenly without pilling, making your morning routine faster and more comfortable.
Lightweight moisture lock
Forms a gentle barrier that reduces water loss from the skin, keeping it hydrated without a heavy or sticky feel.
Cons and cautions
Can feel heavy for some
If you have very oily or acne-prone skin, high concentrations may feel too occlusive or contribute to a 'suffocated' sensation.
May require double cleansing
Silicones can be resistant to water rinsing, so you might need an oil-based cleanser to fully remove them at the end of the day.
Best for
- People with normal to dry skin looking for a smooth, non-greasy moisturizer
- Anyone wanting a primer or sunscreen that glides on and stays put
Use caution if
- Those who prefer silicone-free routines or have very oily skin that feels weighed down by silicones
Usage tips
Safety summary
PPG-27 Dimethicone has a strong safety profile with low irritation and allergy potential. It is considered safe for use in cosmetics at typical concentrations. No significant health concerns have been identified by regulatory bodies.
Research notes
Research on PPG-27 Dimethicone specifically is limited, but the broader dimethicone family has been extensively studied and deemed safe. Studies confirm low skin irritation and no evidence of systemic toxicity from topical use.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics worldwide, including by the U.S. FDA and the European Commission, with no known restrictions at typical use levels.
- Common uses
- Moisturizers, Sunscreens, Primers, Color Cosmetics
- Environmental note
- Silicones like PPG-27 Dimethicone are synthetic and not biodegradable. However, they are not known to be toxic to aquatic life. Some consumers choose silicone-free products for environmental reasons.
Good to know
- PPG-27 Dimethicone is considered non-comedogenic in typical concentrations, meaning it's unlikely to clog pores.
- It is often used in 'water-resistant' sunscreens because of its film-forming ability.
Common questions
What is PPG-27 Dimethicone in beauty products?
PPG-27 Dimethicone is a type of silicone that feels silky on the skin. It helps other ingredients spread evenly, creates a light barrier that locks in moisture, and gives products a smooth, non-greasy finish. It's often used in sunscreens and primers to improve wear and water resistance.
What does PPG-27 Dimethicone do in a beauty product?
When applied, it forms a thin, breathable film on the skin's surface. This film reduces water loss (keeping skin hydrated), helps other ingredients stay put, and gives a smooth, velvety feel. It also helps products resist water and sweat.
Is PPG-27 Dimethicone safe for most people?
PPG-27 Dimethicone has a strong safety profile with low irritation and allergy potential. It is considered safe for use in cosmetics at typical concentrations. No significant health concerns have been identified by regulatory bodies.
Who should be careful with PPG-27 Dimethicone?
Those who prefer silicone-free routines or have very oily skin that feels weighed down by silicones
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.