Ingredient review
Polyacrylate-39
INCI: POLYACRYLATE-39
A synthetic polymer that helps products spread smoothly and stay put, but offers no active skincare benefit.
In plain English
Polyacrylate-39 is a man-made ingredient that forms a thin, flexible film on your skin. It helps lotions and creams feel silky, spread easily, and resist washing off with water or sweat. Think of it like a gentle, invisible glove that holds the product in place without feeling heavy or sticky.
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
Polyacrylate-39 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 Polyacrylate-39.
- 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
Polyacrylate-39 is a synthetic polymer belonging to the acrylate family. It is created by polymerizing acrylic acid derivatives into long chains. In cosmetics, it functions primarily as a film former and viscosity modifier, giving products a smooth, non-tacky feel.
How it works
When applied, Polyacrylate-39 molecules link together to form a thin, flexible film on the skin's surface. This film helps other ingredients stay put, improves water resistance, and creates a silky, even texture. It also slightly thickens the product, making it easier to apply without dripping.
Pros
Improves wear time
Helps makeup and sunscreen stay on longer, even in humidity or water exposure, so you don't need to reapply as often.
Silky texture
Creates a smooth, velvety feel on skin that reduces the sticky or greasy sensation many products leave behind.
Cons and cautions
No active benefit
Polyacrylate-39 is purely a texture and stability helper—it doesn't moisturize, soothe, or treat skin conditions.
Environmental concerns
As a synthetic polymer, it may not biodegrade quickly, which is a consideration for eco-conscious consumers.
Best for
- Anyone wanting long-wearing makeup or water-resistant sunscreen
- People who prefer a silky, non-greasy finish
Use caution if
- Those seeking purely natural or biodegradable formulations
- Individuals with very dry skin who may find film-formers slightly tightening
Usage tips
Safety summary
Polyacrylate-39 is considered safe for topical use at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. No significant safety concerns have been raised by regulatory bodies.
Research notes
Research on Polyacrylate-39 is limited to its function as a film former. Studies on similar acrylate polymers indicate low skin penetration and minimal irritation. No long-term human safety studies are available, but its widespread use supports a good safety profile.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics globally, including by the FDA (USA) and EU CosIng database, with no known restrictions at typical levels.
- Common uses
- Sunscreens, Foundations, Mascaras, Water-resistant creams
- Environmental note
- As a synthetic polymer, its biodegradability varies. Some newer acrylate copolymers are designed to be more eco-friendly, but Polyacrylate-39 is not specifically marketed as biodegradable.
Good to know
- Often listed near the end of ingredient lists due to low concentrations
- Commonly used alongside other film-formers for a flexible finish
Common questions
What is Polyacrylate-39 in beauty products?
Polyacrylate-39 is a man-made ingredient that forms a thin, flexible film on your skin. It helps lotions and creams feel silky, spread easily, and resist washing off with water or sweat. Think of it like a gentle, invisible glove that holds the product in place without feeling heavy or sticky.
What does Polyacrylate-39 do in a beauty product?
When applied, Polyacrylate-39 molecules link together to form a thin, flexible film on the skin's surface. This film helps other ingredients stay put, improves water resistance, and creates a silky, even texture. It also slightly thickens the product, making it easier to apply without dripping.
Is Polyacrylate-39 safe for most people?
Polyacrylate-39 is considered safe for topical use at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. No significant safety concerns have been raised by regulatory bodies.
Who should be careful with Polyacrylate-39?
Those seeking purely natural or biodegradable formulations Individuals with very dry skin who may find film-formers slightly tightening
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.