Ingredient review
Acrylates/Soybean Oil Copolymer
INCI: ACRYLATES/HYDROXYPROPYL EPOXIDIZED SOYBEAN OIL COPOLYMER
A safe film-forming polymer that helps makeup and sunscreen stay put without clogging pores.
In plain English
This ingredient is a plastic-like material made from acrylic acid and a modified version of soybean oil. In cosmetics, it creates a thin, flexible film on your skin that helps other ingredients stay in place longer and resist water or sweat. Think of it like a gentle, invisible glue that holds your makeup or sunscreen together without feeling heavy or sticky.
Quick decision guide
Useful, but context matters
Acrylates/Soybean Oil 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 Acrylates/Soybean Oil 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 semi-synthetic copolymer created by reacting acrylic monomers with epoxidized soybean oil. It belongs to the acrylate family of film formers, widely used in cosmetics for their ability to form a uniform, flexible layer on skin or hair.
How it works
When applied, the copolymer molecules spread out and link together as the solvent (usually water or alcohol) evaporates, forming a continuous film. This film physically locks in pigments or UV filters, improves water resistance, and gives a smooth, even finish. It also helps control the thickness (viscosity) of the product.
Pros
Long-wearing hold
Creates a flexible film that helps makeup and sunscreen stay in place for hours, even in humid or sweaty conditions.
Non-comedogenic
Unlikely to clog pores, making it suitable for acne-prone skin when used in typical concentrations.
Cons and cautions
Potential dryness
The film can feel slightly tight or drying on very dry or sensitive skin, especially if used in high concentrations.
Environmental persistence
As a synthetic polymer, it does not readily biodegrade, which is a concern for eco-conscious consumers.
Best for
- Anyone wanting longer-lasting makeup or sunscreen
- People with oily or combination skin who prefer a matte finish
Use caution if
- Those with extremely dry or compromised skin barriers who may find film formers too drying
Usage tips
Safety summary
Acrylates/Hydroxypropyl Epoxidized Soybean Oil Copolymer has a low irritation and comedogenic risk. It is considered safe for use in cosmetics at typical concentrations. No significant safety concerns have been reported in regulatory reviews.
Research notes
Evidence is based on general safety data for acrylate copolymers and modified soybean oil derivatives. No specific clinical studies on this exact copolymer were found, but the class is well-studied and considered safe for topical use.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US (FDA), EU (CosIng), and other major markets. No concentration restrictions are typically imposed.
- Common uses
- Foundations, Sunscreens, Waterproof mascaras, Long-wear lip products
- Environmental note
- As a synthetic polymer, it is not biodegradable. However, it is used in small amounts and is not known to bioaccumulate. Some manufacturers are exploring bio-based alternatives.
Good to know
- This ingredient is often found in 'transfer-proof' or '24-hour wear' makeup claims.
- It is considered safe by major regulatory bodies when used as intended in cosmetics.
Common questions
What is Acrylates/Soybean Oil Copolymer in beauty products?
This ingredient is a plastic-like material made from acrylic acid and a modified version of soybean oil. In cosmetics, it creates a thin, flexible film on your skin that helps other ingredients stay in place longer and resist water or sweat. Think of it like a gentle, invisible glue that holds your makeup or sunscreen together without feeling heavy or sticky.
What does Acrylates/Soybean Oil Copolymer do in a beauty product?
When applied, the copolymer molecules spread out and link together as the solvent (usually water or alcohol) evaporates, forming a continuous film. This film physically locks in pigments or UV filters, improves water resistance, and gives a smooth, even finish. It also helps control the thickness (viscosity) of the product.
Is Acrylates/Soybean Oil Copolymer safe for most people?
Acrylates/Hydroxypropyl Epoxidized Soybean Oil Copolymer has a low irritation and comedogenic risk. It is considered safe for use in cosmetics at typical concentrations. No significant safety concerns have been reported in regulatory reviews.
Who should be careful with Acrylates/Soybean Oil Copolymer?
Those with extremely dry or compromised skin barriers who may find film formers too drying
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.