Ingredient review
Polyacrylate-1 Crosspolymer
INCI: POLYACRYLATE-1 CROSSPOLYMER
A safe, effective thickener and stabilizer that improves product texture without clogging pores or irritating skin.
In plain English
Polyacrylate-1 Crosspolymer is a synthetic ingredient that helps give skincare products a smooth, gel-like texture. It acts like a sponge that soaks up water and swells, creating a nice, spreadable consistency. It also helps keep other ingredients mixed together so they don't separate. Think of it as the ingredient that makes your gel moisturizer feel silky and stay stable on the shelf.
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-1 Crosspolymer 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-1 Crosspolymer.
- 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 high-molecular-weight synthetic polymer made from acrylic acid monomers that are crosslinked (chemically linked together) to form a network. This network can absorb and hold water, creating a gel-like structure.
How it works
When added to water, the polymer chains swell and entangle, increasing the viscosity (thickness) of the formula. This creates a stable gel or cream that resists separation. It also forms a thin, flexible film on the skin that can help other ingredients stay in place and reduce water loss (transepidermal water loss, or TEWL, which is the moisture that evaporates from your skin).
Pros
Excellent texture enhancer
It transforms watery liquids into pleasant, spreadable gels and creams, making your skincare routine feel more luxurious.
Improves product stability
It prevents oil and water from separating, so your product stays consistent and effective from first use to last.
Cons and cautions
Synthetic origin
It is made from petroleum-derived acrylic acid, which may be a concern for those seeking 100% natural or biodegradable ingredients.
Potential tackiness
In high concentrations or certain formulations, it can leave a slightly sticky or tacky feeling on the skin after application.
Best for
- Anyone who enjoys lightweight gel moisturizers or serums
- People with oily or combination skin who prefer non-greasy textures
Use caution if
- Those who strictly avoid synthetic ingredients in their skincare
Usage tips
Safety summary
Polyacrylate-1 Crosspolymer has a strong safety profile with very low irritation and allergy potential. It is widely used in cosmetics and personal care products and is considered safe for all skin types, including sensitive skin.
Research notes
Safety assessments by expert panels (e.g., CIR) have concluded that polyacrylate crosspolymers are safe in cosmetics at current usage levels. Most evidence comes from formulation science rather than clinical skin studies, but decades of safe use support its safety.
Common label clues
- Typical concentration
- 0.1% to 2%
- Regulatory status
- Approved for use in cosmetics globally, including by the U.S. FDA and the European Commission. It is considered safe at typical use concentrations.
- Common uses
- Gels, Serums, Creams, Lotions, Sunscreens
- Environmental note
- As a synthetic polymer, it is not biodegradable and may persist in the environment. Some manufacturers are exploring bio-based alternatives.
Good to know
- Polyacrylate-1 Crosspolymer is often used alongside other thickeners to fine-tune texture.
- It is considered non-comedogenic and safe for most skin types, including acne-prone skin.
Common questions
What is Polyacrylate-1 Crosspolymer in beauty products?
Polyacrylate-1 Crosspolymer is a synthetic ingredient that helps give skincare products a smooth, gel-like texture. It acts like a sponge that soaks up water and swells, creating a nice, spreadable consistency. It also helps keep other ingredients mixed together so they don't separate. Think of it as the ingredient that makes your gel moisturizer feel silky and stay stable on the shelf.
What does Polyacrylate-1 Crosspolymer do in a beauty product?
When added to water, the polymer chains swell and entangle, increasing the viscosity (thickness) of the formula. This creates a stable gel or cream that resists separation. It also forms a thin, flexible film on the skin that can help other ingredients stay in place and reduce water loss (transepidermal water loss, or TEWL, which is the moisture that evaporates from your skin).
Is Polyacrylate-1 Crosspolymer safe for most people?
Polyacrylate-1 Crosspolymer has a strong safety profile with very low irritation and allergy potential. It is widely used in cosmetics and personal care products and is considered safe for all skin types, including sensitive skin.
Who should be careful with Polyacrylate-1 Crosspolymer?
Those who strictly avoid synthetic ingredients in their skincare
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.