Is Mascara / eye makeup dangerous for cats?
Caution. Mascara, eyeliner, and eye makeup removers aren't highly toxic but often contain solvents and preservatives that irritate cats. A cat rubbing its face on a freshly-made-up owner can transfer product to its own eyes.
Key facts
- Verdict: Caution — some risk involved. See the detail below before giving mascara / eye makeup to your cat.
- Category: Personal care
- Onset: Signs can start 0–2 hours — see the full timeline below.
If your cat has eaten mascara / eye makeup
- For small amounts: monitor.
- If product got into the cat's eyes: flush with saline solution for several minutes.
- Call your vet if redness, swelling, or excessive blinking persists.
What's the full picture?
Modern mascara and eyeliner formulations sold in the UK are generally low-toxicity products by design, since they're intended for repeated use close to a human eye and are regulated accordingly. That said, 'low-toxicity for a human eye' doesn't mean 'harmless for a cat', and the ingredient list typically includes preservatives such as parabens or phenoxyethanol, film-forming waxes and polymers, pigments, and solvents, some of which can irritate a cat's skin, mouth, or eyes on contact even without being acutely poisonous.
The more realistic everyday risk in a UK household isn't a cat eating a tube of mascara — it's the far more mundane scenario of an affectionate cat headbutting or cheek-rubbing against an owner's face shortly after makeup has been applied. This transfers trace amounts of product onto the cat's fur around the face, which the cat can then get into its own eyes during grooming, or which simply sits on the fur and causes localised skin irritation. It's a low-dose but genuinely common exposure route that doesn't require the cat to interact with the makeup product itself at all.
Direct chewing or ingestion of a mascara wand or tube is less common but does happen, particularly with curious kittens investigating a makeup bag. If a cat chews the wand or swallows a small amount of product, the physical bristled applicator itself carries a minor choking or minor mouth-irritation risk alongside the chemical exposure, though a small ingested amount is unlikely to cause more than mild drooling or a brief bout of stomach upset.
Eye makeup remover deserves separate mention, since these products — particularly oil-based or 'waterproof-formula' removers — tend to contain a higher concentration of solvents than the makeup itself, precisely because they're designed to dissolve stubborn, long-wearing pigment. A spill or a curious lick of remover is more likely to cause noticeable irritation than the same exposure to mascara. Keeping bottles capped and stored inside a closed makeup bag or drawer, rather than left open on a bathroom counter, removes most of the realistic risk.
Symptoms to watch for
We earn commission from some links below (Amazon Associates, Commission Junction, AWIN). This supports the site at no extra cost to you.
Cat owner essentials
For prescription-strength flea, tick and wormer protection, Best Vet Care ships direct from licensed vets — no vet visit required. (affiliate link)
Questions owners ask
My cat chewed the mascara wand — what should I do?
Check the mouth for any bristles or plastic fragments that might have broken off, offer fresh water, and monitor for drooling or mild stomach upset over the next few hours. This isn't usually an emergency, but call your vet if your cat seems distressed, is pawing persistently at the mouth, or the vomiting doesn't settle.
Can eyeliner or eyeshadow poison a cat?
Not in any acutely toxic sense at the small quantities involved, but the same preservative and pigment ingredients found in mascara apply, and powder eyeshadows can cause mild respiratory irritation if a cat inhales loose powder. Treat all eye makeup with the same sensible caution: keep it capped and stored away from curious paws.
Is waterproof mascara worse than regular?
It can be, mainly because waterproof formulas rely on a higher concentration of oils and film-forming solvents to resist water, which slightly raises the irritation potential if it gets into a cat's eyes or mouth compared with a standard water-based formula. The difference is one of degree rather than a different category of danger.
How do I clean makeup off my cat's fur safely?
Use a damp cloth with plain water first, or a small amount of pet-safe shampoo diluted according to the label if the residue is stubborn, rather than reaching for a human makeup remover or wipe, which would simply add another layer of solvent exposure. If makeup has got into the eyes themselves, flush gently with saline eye wash and call your vet if redness or discomfort persists.
A bitter deterrent spray makes cables, bin lids, and cupboard edges taste unpleasant without harming your cat.
Recommended for cat owners
Related
Sources referenced for this guidance
- Veterinary Poisons Information Service (VPIS) — UK clinical toxicology reference used by vets
- International Cat Care — feline-specific clinical guidance
- BSAVA — British Small Animal Veterinary Association reference materials
- Merck Veterinary Manual — professional veterinary reference
About this guidance
Every entry on this site is compiled from published UK veterinary toxicology sources — International Cat Care, Veterinary Poisons Information Service (VPIS) references, RCVS-registered practice materials, and peer-reviewed feline medicine literature. Where the evidence is mixed, we err on the cautious side because cats are unusually sensitive to many common substances that are harmless to humans and even to dogs.
This is general information written for UK cat owners. It is not personalised veterinary advice for your specific cat, their age, weight, medical history, or the exact exposure you're dealing with. If your cat has eaten something or is unwell, call your vet first. The Animal PoisonLine on 01202 509000 is available 24/7 for a small fee and can tell you whether an emergency visit is needed.
Entries are reviewed and updated as new research emerges. Spotted an error? Let us know — corrections are investigated and applied within 24 hours. For more context on how we work, see about and our full disclaimer.
Last reviewed: · By the What Can My Cat Eat? editorial team