Ingredient review
Polyurethane-74
INCI: Polyurethane-74
Polyurethane-74 is a synthetic film-former that helps makeup and skincare products last longer and feel smoother, with a low risk of irritation.
In plain English
Polyurethane-74 is a man-made ingredient that creates a thin, flexible film on your skin. This film helps makeup stay in place longer, prevents it from smudging, and can make your skin feel silky. It's like a gentle, invisible shield that doesn't clog pores or cause irritation for most people.
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
Polyurethane-74 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 Polyurethane-74.
- 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
Polyurethane-74 is a synthetic polymer, a type of plastic-like material designed specifically for cosmetics. It is part of a family of polyurethanes that are engineered to be safe for skin contact and to provide a smooth, even finish.
How it works
When applied, Polyurethane-74 forms a continuous, breathable film on the skin's surface. This film acts as a barrier that locks in other ingredients, reduces water loss, and helps pigments adhere evenly. It also gives products a lightweight, non-greasy feel and improves their resistance to sweat and humidity.
Pros
Boosts wear time
Helps foundation and eye makeup last through a long day without fading or creasing.
Lightweight feel
Creates a silky, non-greasy finish that doesn't weigh down the skin.
Cons and cautions
Synthetic origin
Not suitable for those seeking only natural or organic ingredients.
Potential tightness
In high concentrations, it may feel slightly drying or tight on very dry or dehydrated skin.
Best for
- Anyone looking for long-wearing makeup or sunscreen
- People with oily or combination skin who want a matte finish
Use caution if
- Those who prefer 100% natural or plant-based ingredients
Usage tips
Safety summary
Polyurethane-74 has a strong safety profile with low irritation and allergy potential. It is not absorbed into the skin and is considered safe for daily use in cosmetics.
Research notes
Polyurethane polymers have been studied for their film-forming properties and skin compatibility. While specific studies on Polyurethane-74 are limited, the broader class is well-documented as safe and effective in cosmetic applications.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and other major markets. No known restrictions at typical use levels.
- Common uses
- Foundations, Primers, Sunscreens, Long-wear makeup
- Environmental note
- As a synthetic polymer, its biodegradability is limited. However, it is used in small amounts and is not known to accumulate in the environment.
Good to know
- Polyurethane-74 is considered non-comedogenic and safe for sensitive skin.
- It is often used in combination with silicones for an ultra-smooth texture.
Common questions
What is Polyurethane-74 in beauty products?
Polyurethane-74 is a man-made ingredient that creates a thin, flexible film on your skin. This film helps makeup stay in place longer, prevents it from smudging, and can make your skin feel silky. It's like a gentle, invisible shield that doesn't clog pores or cause irritation for most people.
What does Polyurethane-74 do in a beauty product?
When applied, Polyurethane-74 forms a continuous, breathable film on the skin's surface. This film acts as a barrier that locks in other ingredients, reduces water loss, and helps pigments adhere evenly. It also gives products a lightweight, non-greasy feel and improves their resistance to sweat and humidity.
Is Polyurethane-74 safe for most people?
Polyurethane-74 has a strong safety profile with low irritation and allergy potential. It is not absorbed into the skin and is considered safe for daily use in cosmetics.
Who should be careful with Polyurethane-74?
Those who prefer 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.