Ingredient review
PEG-100 Polycaprolactone Palmitate
INCI: METHOXY PEG-100/POLYEPSILON CAPROLACTONE PALMITATE
A gentle film-forming polymer that helps ingredients spread smoothly and leaves skin feeling soft without clogging pores.
In plain English
This ingredient is a type of polymer (a long-chain molecule) that forms a thin, invisible film on your skin. It helps other ingredients spread evenly and stay put, while also making your skin feel smooth and silky. Think of it like a very light, breathable coating that locks in moisture without feeling heavy or greasy.
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-100 Polycaprolactone Palmitate 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-100 Polycaprolactone Palmitate.
- 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 semi-synthetic polymer created by combining polyethylene glycol (PEG) with caprolactone and palmitic acid. It is designed to be water-dispersible and to provide a silky, non-tacky feel on skin.
How it works
When applied, it spreads into a thin, flexible film that holds moisture close to the skin and helps other ingredients (like emollients or active compounds) stay on the surface longer. It also reduces the greasy feel of oils, making products more pleasant to use.
Pros
Smooth, silky feel
Creates a non-greasy, velvety finish that makes skin feel soft and comfortable.
Improves product texture
Helps creams and serums spread evenly and absorb quickly, enhancing the user experience.
Cons and cautions
PEG-derived
Made from polyethylene glycol, which some consumers prefer to avoid due to potential impurities from manufacturing.
Limited skin benefit data
While it feels nice, there is little published research showing direct long-term benefits beyond texture improvement.
Best for
- People with normal to dry skin looking for a lightweight moisturizing feel
- Those who prefer non-greasy, fast-absorbing products
Use caution if
- Individuals with known sensitivity to PEG compounds
- Those seeking 100% natural or plant-based ingredients
Usage tips
Safety summary
Generally recognized as safe for topical use in cosmetics. Low irritation and comedogenic potential. Some consumers may avoid PEG derivatives due to ethical or purity concerns.
Research notes
Limited peer-reviewed studies specifically on this ingredient. Safety is inferred from similar PEG-based polymers and long history of use in cosmetics.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and other major markets. Considered safe at typical concentrations.
- Common uses
- Moisturizers, Serums, Sunscreens, Makeup
- Environmental note
- As a synthetic polymer, it may not be biodegradable. Check product packaging for environmental certifications.
Good to know
- Often used in combination with other emollients to balance texture.
- Not known to cause breakouts for most skin types.
Common questions
What is PEG-100 Polycaprolactone Palmitate in beauty products?
This ingredient is a type of polymer (a long-chain molecule) that forms a thin, invisible film on your skin. It helps other ingredients spread evenly and stay put, while also making your skin feel smooth and silky. Think of it like a very light, breathable coating that locks in moisture without feeling heavy or greasy.
What does PEG-100 Polycaprolactone Palmitate do in a beauty product?
When applied, it spreads into a thin, flexible film that holds moisture close to the skin and helps other ingredients (like emollients or active compounds) stay on the surface longer. It also reduces the greasy feel of oils, making products more pleasant to use.
Is PEG-100 Polycaprolactone Palmitate safe for most people?
Generally recognized as safe for topical use in cosmetics. Low irritation and comedogenic potential. Some consumers may avoid PEG derivatives due to ethical or purity concerns.
Who should be careful with PEG-100 Polycaprolactone Palmitate?
Individuals with known sensitivity to PEG compounds Those seeking 100% natural or plant-based ingredients
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.