Ingredient review
Polyacrylate-46
INCI: Polyacrylate-46
A synthetic film-former that helps products spread evenly and stay put, but offers no active skincare benefit.
In plain English
Polyacrylate-46 is a plastic-like ingredient that forms a thin, flexible film on your skin or hair. It helps sunscreen stay in place, makes makeup glide on smoothly, and can give hair a light hold. Think of it as a clear, invisible layer that helps the product perform better 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-46 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-46.
- 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-46 is a synthetic polymer, meaning it's a large molecule made from repeating units. It belongs to the acrylate family and is designed to create a uniform, flexible film when applied to the skin or hair.
How it works
When applied, the water in the product evaporates, leaving behind a thin, even film of Polyacrylate-46. This film helps other ingredients (like UV filters in sunscreen) stay in place, improves the spreadability of the product, and can create a smooth, blurring effect on the skin's surface.
Pros
Improves wear time
Helps sunscreen and makeup stay put longer, reducing the need for frequent reapplication.
Lightweight feel
Creates a thin, flexible film that doesn't feel heavy or sticky on the skin, making it ideal for oily or combination skin types.
Cons and cautions
No active benefit
Polyacrylate-46 is a functional ingredient that improves product feel and performance but doesn't hydrate, soothe, or treat the skin.
Environmental persistence
As a synthetic polymer, it is not biodegradable and can accumulate in the environment, which is a concern for eco-conscious consumers.
Best for
- Anyone looking for a long-wearing sunscreen or makeup primer
- People with oily skin who prefer a matte, non-greasy finish
Use caution if
- Those who prefer entirely natural or biodegradable formulas
- Individuals with very dry or dehydrated skin who need more emollient ingredients
Usage tips
Safety summary
Polyacrylate-46 is considered safe for use in cosmetics at typical concentrations. It has a low risk of skin irritation or allergy. However, like many synthetic polymers, it is not biodegradable, which raises environmental concerns.
Research notes
There is limited published research specifically on Polyacrylate-46. Its safety is generally inferred from the broader class of acrylate polymers, which have a long history of safe use in cosmetics. The Cosmetic Ingredient Review (CIR) panel has reviewed similar acrylate copolymers and found them safe as used.
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 specific concentration limits are set, but it is generally used at low levels.
- Common uses
- Sunscreens, Makeup primers, Hair styling products, Moisturizers
- Environmental note
- As a synthetic polymer, Polyacrylate-46 is not biodegradable and may contribute to microplastic pollution. Some manufacturers are exploring bio-based alternatives.
Good to know
- Often used in combination with other film-formers for a stronger effect
- Can be found in both rinse-off and leave-on products
Common questions
What is Polyacrylate-46 in beauty products?
Polyacrylate-46 is a plastic-like ingredient that forms a thin, flexible film on your skin or hair. It helps sunscreen stay in place, makes makeup glide on smoothly, and can give hair a light hold. Think of it as a clear, invisible layer that helps the product perform better without feeling heavy or sticky.
What does Polyacrylate-46 do in a beauty product?
When applied, the water in the product evaporates, leaving behind a thin, even film of Polyacrylate-46. This film helps other ingredients (like UV filters in sunscreen) stay in place, improves the spreadability of the product, and can create a smooth, blurring effect on the skin's surface.
Is Polyacrylate-46 safe for most people?
Polyacrylate-46 is considered safe for use in cosmetics at typical concentrations. It has a low risk of skin irritation or allergy. However, like many synthetic polymers, it is not biodegradable, which raises environmental concerns.
Who should be careful with Polyacrylate-46?
Those who prefer entirely natural or biodegradable formulas Individuals with very dry or dehydrated skin who need more emollient 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.