Ingredient review
Polyurea Crosspolymer-5
INCI: POLYUREA CROSSPOLYMER-5
Polyurea Crosspolymer-5 is a synthetic polymer that helps makeup and skincare products last longer and feel smoother on the skin.
In plain English
Polyurea Crosspolymer-5 is a man-made ingredient that forms a thin, flexible film on your skin. This film helps other ingredients stay put longer, so your foundation doesn't slide off or your sunscreen doesn't rub away as easily. It also gives products a silky, lightweight feel without being sticky or heavy.
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
Polyurea Crosspolymer-5 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 Polyurea Crosspolymer-5.
- 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 crosslinked polymer made from urea and other monomers, designed to create a flexible film on the skin.
How it works
When applied, the polymer molecules link together to form a breathable, water-resistant film. This film holds active ingredients and pigments in place, reduces transfer to clothing, and helps the product resist sweat and humidity.
Pros
Longer wear
Helps makeup and sunscreen stay on your skin for hours, even in heat or humidity.
Smooth texture
Gives products a silky, non-greasy feel that glides on easily and doesn't pill.
Cons and cautions
Synthetic origin
Made from chemical processes, which may not align with a natural or minimal-ingredient skincare routine.
Limited safety data
There is less independent research on this specific polymer compared to older, more common film-formers.
Best for
- People who want long-lasting makeup or sunscreen
- Those with oily skin who need extra staying power
Use caution if
- Anyone who prefers exclusively natural or plant-based ingredients
Usage tips
Safety summary
Polyurea Crosspolymer-5 is considered safe for topical use at typical cosmetic concentrations. It has low irritation and comedogenic potential, though long-term absorption studies are limited.
Research notes
Research on Polyurea Crosspolymer-5 is primarily industry-sponsored and focuses on its film-forming and texture-enhancing properties. Independent peer-reviewed studies are scarce, but its safety profile is supported by regulatory reviews.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and other major markets at concentrations up to 5%.
- Common uses
- Foundations, Sunscreens, Long-wear makeup, Primers
- Environmental note
- As a synthetic polymer, it may not be biodegradable. Check product packaging for environmental claims.
Good to know
- Polyurea Crosspolymer-5 is often used in combination with other film-formers to balance flexibility and durability.
- It is considered safe for use in cosmetics by major regulatory bodies at typical concentrations.
Common questions
What is Polyurea Crosspolymer-5 in beauty products?
Polyurea Crosspolymer-5 is a man-made ingredient that forms a thin, flexible film on your skin. This film helps other ingredients stay put longer, so your foundation doesn't slide off or your sunscreen doesn't rub away as easily. It also gives products a silky, lightweight feel without being sticky or heavy.
What does Polyurea Crosspolymer-5 do in a beauty product?
When applied, the polymer molecules link together to form a breathable, water-resistant film. This film holds active ingredients and pigments in place, reduces transfer to clothing, and helps the product resist sweat and humidity.
Is Polyurea Crosspolymer-5 safe for most people?
Polyurea Crosspolymer-5 is considered safe for topical use at typical cosmetic concentrations. It has low irritation and comedogenic potential, though long-term absorption studies are limited.
Who should be careful with Polyurea Crosspolymer-5?
Anyone who prefers exclusively 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.