Ingredient review
Tallow Amine Copolymer
INCI: BIS-HYDROGENATED TALLOW AMINE DILINOLEIC ACID/ETHYLENEDIAMINE COPOLYMER
A film-forming polymer that helps products stay put, but its animal-derived origin and potential to feel heavy may not suit everyone.
In plain English
This ingredient is a type of plastic-like polymer made from hydrogenated tallow (a processed animal fat) combined with other chemicals. In cosmetics, it creates a thin, flexible film on your skin or hair that helps other ingredients stay in place and resist water or sweat. Think of it as a clear, invisible shield that keeps your makeup from smudging or your hairstyle from falling flat.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Main practical flags: irritation is low; clogging risk is moderate.
- Source
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- moderate
Quick decision guide
Useful, but context matters
Tallow Amine Copolymer can be useful, but watch for possible clogging concerns.
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 Tallow Amine 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
moderateMay be fine for many users but deserves caution if you are breakout-prone.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A semi-synthetic copolymer synthesized from hydrogenated tallow amine (derived from animal fat), dilinoleic acid (a fatty acid from plant oils), and ethylenediamine. It forms a large, film-forming molecule that dries down to a flexible, water-resistant coating.
How it works
When applied, the copolymer's molecules spread out and link together as the solvent (water or alcohol) evaporates, creating a continuous, flexible film. This film physically blocks water and oil from disturbing the underlying product, while also helping to hold hair strands in place or keep makeup pigments adhered to the skin.
Pros
Excellent water resistance
Helps mascara, eyeliner, and foundation resist sweat, tears, and humidity, so your look lasts longer without smudging.
Flexible film
Unlike some stiff polymers, this one creates a pliable film that moves with your skin or hair, reducing cracking or flaking throughout the day.
Cons and cautions
Animal-derived origin
Made from hydrogenated tallow (processed beef or mutton fat), which is not suitable for vegans and may raise ethical concerns for some users.
Potential for heavy feel
The film can feel thick or tacky on the skin, especially in high concentrations, which might be uncomfortable for those who prefer lightweight textures.
Best for
- People who want long-wearing, waterproof makeup
- Those with normal to oily skin who need extra staying power
Use caution if
- Vegans or those avoiding animal-derived ingredients
- People with very dry or dehydrated skin who may find it too drying or heavy
Usage tips
Safety summary
Generally considered safe for topical use at typical concentrations. Low irritation potential, but moderate comedogenic risk means it may clog pores for acne-prone individuals. Not suitable for vegans.
Research notes
Limited peer-reviewed studies specifically on this copolymer, but film-forming polymers as a class are well-documented for their safety and efficacy in cosmetics. The Cosmetic Ingredient Review (CIR) has reviewed similar tallow-derived ingredients and found them safe when formulated properly.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US (FDA), EU (CosIng), and many other regions, with no specific restrictions at typical concentrations.
- Common uses
- Waterproof mascaras, Long-wear foundations, Hair styling products, Sunscreens
- Environmental note
- Derived from animal agriculture byproducts, which some consider more sustainable than virgin resources, but it is not biodegradable and may persist in the environment.
Good to know
- This ingredient is often found in waterproof and long-wear products, but it may require oil-based cleansers or micellar water for thorough removal.
- The 'hydrogenated' prefix means the tallow has been chemically processed to make it more stable and less likely to go rancid.
Common questions
What is Tallow Amine Copolymer in beauty products?
This ingredient is a type of plastic-like polymer made from hydrogenated tallow (a processed animal fat) combined with other chemicals. In cosmetics, it creates a thin, flexible film on your skin or hair that helps other ingredients stay in place and resist water or sweat. Think of it as a clear, invisible shield that keeps your makeup from smudging or your hairstyle from falling flat.
What does Tallow Amine Copolymer do in a beauty product?
When applied, the copolymer's molecules spread out and link together as the solvent (water or alcohol) evaporates, creating a continuous, flexible film. This film physically blocks water and oil from disturbing the underlying product, while also helping to hold hair strands in place or keep makeup pigments adhered to the skin.
Is Tallow Amine Copolymer safe for most people?
Generally considered safe for topical use at typical concentrations. Low irritation potential, but moderate comedogenic risk means it may clog pores for acne-prone individuals. Not suitable for vegans.
Who should be careful with Tallow Amine Copolymer?
Vegans or those avoiding animal-derived ingredients People with very dry or dehydrated skin who may find it too drying or heavy
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.