Ingredient review
Ricinolate Adipate Copolymer
INCI: RICINOLEIC ACID/ADIPIC ACID/AEEA COPOLYMER
A safe, effective film-former that helps makeup and hair products last longer without feeling stiff or heavy.
In plain English
This ingredient is a synthetic polymer that forms a thin, flexible film on your skin or hair. Think of it like an invisible, breathable shield that helps makeup stay put and hair hold its style, even in humidity. It is not an oil or a wax, so it won't feel greasy or heavy.
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
Ricinolate Adipate 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 Ricinolate Adipate 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 copolymer made by reacting ricinoleic acid (from castor oil), adipic acid, and aminoethylethanolamine (AEEA). The result is a flexible, water-resistant film-forming polymer.
How it works
When applied, the polymer molecules link together as the solvent (water or alcohol) evaporates, creating a continuous, flexible film on the surface. This film physically locks in pigments (in makeup) or holds hair strands in place (in styling products). Its flexibility prevents cracking or flaking.
Pros
Flexible film
Unlike some older film-formers, this copolymer stays flexible, so your makeup won't crack or feel like a mask.
Water-resistant without oiliness
It provides water resistance without adding heavy oils, making it ideal for long-wear and waterproof formulas.
Cons and cautions
Removal can be tricky
Because it forms a water-resistant film, you may need an oil-based or micellar cleanser to fully remove it, especially from eyes.
Potential tackiness
In high concentrations or poorly balanced formulas, it can leave a slightly sticky or tacky feel on skin or hair.
Best for
- Anyone wanting long-lasting makeup or sunscreen
- People with normal to oily skin who need extra wear time
Use caution if
- Those who prefer very lightweight, 'barely there' makeup textures
Usage tips
Safety summary
Extensively tested and considered safe for cosmetic use at typical concentrations. Rare reports of mild irritation, mostly from incomplete removal leading to buildup. No known carcinogenicity or systemic toxicity.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) panel and EU SCCS have concluded that ricinoleic acid/adipic acid/AEEA copolymer is safe as used in cosmetics. Studies focus on its film-forming properties and lack of skin sensitization.
Common label clues
- Typical concentration
- 0.5% to 5% in leave-on products; up to 10% in rinse-off products
- Regulatory status
- Approved for use in cosmetics globally, including by the U.S. FDA and EU CosIng database, with no concentration restrictions.
- Common uses
- Waterproof mascaras, Long-wear foundations, Hair styling gels and sprays, Sunscreen formulas
- Environmental note
- As a synthetic polymer, it is not biodegradable. However, it is used in small amounts and is not considered a major environmental concern compared to microplastics.
Good to know
- This ingredient is often used in combination with other film-formers to fine-tune the feel and durability of a product.
- It is considered safe for use around the eyes in mascaras and eyeliners.
Common questions
What is Ricinolate Adipate Copolymer in beauty products?
This ingredient is a synthetic polymer that forms a thin, flexible film on your skin or hair. Think of it like an invisible, breathable shield that helps makeup stay put and hair hold its style, even in humidity. It is not an oil or a wax, so it won't feel greasy or heavy.
What does Ricinolate Adipate Copolymer do in a beauty product?
When applied, the polymer molecules link together as the solvent (water or alcohol) evaporates, creating a continuous, flexible film on the surface. This film physically locks in pigments (in makeup) or holds hair strands in place (in styling products). Its flexibility prevents cracking or flaking.
Is Ricinolate Adipate Copolymer safe for most people?
Extensively tested and considered safe for cosmetic use at typical concentrations. Rare reports of mild irritation, mostly from incomplete removal leading to buildup. No known carcinogenicity or systemic toxicity.
Who should be careful with Ricinolate Adipate Copolymer?
Those who prefer very lightweight, 'barely there' makeup textures
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.