Ingredient review
Epsilon Caprolactone/PPG-25 Copolymer
INCI: EPSILON CAPROLACTONE/PPG-25 COPOLYMER
A synthetic polymer that helps products stay put and feel smooth, but offers no active skincare benefit.
In plain English
This is a plastic-like ingredient that forms a thin, flexible film on your skin. It helps makeup last longer, makes sunscreen more water-resistant, and gives lotions a silky, non-sticky feel. Think of it as a gentle glue that holds the product in place without clogging pores.
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
Epsilon Caprolactone/PPG-25 Copolymer 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 Epsilon Caprolactone/PPG-25 Copolymer.
- 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 copolymer made from caprolactone and PPG-25, designed to create a flexible, breathable film on the skin or hair.
How it works
When applied, the polymer molecules link together to form a continuous, invisible film. This film helps other ingredients stay on the skin longer, reduces transfer of makeup, and improves water resistance. It also thickens the product slightly, giving it a nicer texture.
Pros
Longer wear
Helps makeup and sunscreen stay in place for hours, reducing the need for reapplication.
Non-greasy feel
Creates a smooth, silky finish without the heavy or sticky sensation some film-formers leave behind.
Cons and cautions
No active benefit
This ingredient only improves product performance; it does not hydrate, brighten, or treat skin concerns.
Potential tightness
On very dry or sensitive skin, the film may feel slightly tight or uncomfortable, especially in cold weather.
Best for
- Anyone wanting long-lasting makeup or water-resistant sunscreen
- People with normal to oily skin who prefer a matte finish
Use caution if
- Those with very dry or dehydrated skin who may find film-formers uncomfortable
Usage tips
Safety summary
Low irritation and comedogenic risk. Considered safe for most skin types when used as directed. No significant safety concerns reported in cosmetic use.
Research notes
Limited independent studies on this specific polymer, but the broader class of caprolactone-based copolymers is well-tolerated in cosmetic formulations. Safety is supported by industry use and regulatory approvals.
Common label clues
- Typical concentration
- 1–10% in most formulas
- Regulatory status
- Approved for use in cosmetics in the US, EU, and other major markets. No known restrictions at typical use levels.
- Common uses
- Sunscreens, Long-wear makeup, Water-resistant formulas
- Environmental note
- As a synthetic polymer, it is not biodegradable. However, it is used in small amounts and is not known to accumulate in the environment at concerning levels.
Good to know
- This polymer is considered safe for use in cosmetics by major regulatory bodies.
- It is often found in combination with other film-formers to fine-tune texture and durability.
Common questions
What is Epsilon Caprolactone/PPG-25 Copolymer in beauty products?
This is a plastic-like ingredient that forms a thin, flexible film on your skin. It helps makeup last longer, makes sunscreen more water-resistant, and gives lotions a silky, non-sticky feel. Think of it as a gentle glue that holds the product in place without clogging pores.
What does Epsilon Caprolactone/PPG-25 Copolymer do in a beauty product?
When applied, the polymer molecules link together to form a continuous, invisible film. This film helps other ingredients stay on the skin longer, reduces transfer of makeup, and improves water resistance. It also thickens the product slightly, giving it a nicer texture.
Is Epsilon Caprolactone/PPG-25 Copolymer safe for most people?
Low irritation and comedogenic risk. Considered safe for most skin types when used as directed. No significant safety concerns reported in cosmetic use.
Who should be careful with Epsilon Caprolactone/PPG-25 Copolymer?
Those with very dry or dehydrated skin who may find film-formers uncomfortable
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.