Parents digging out last year’s Halloween face paints, fake blood and costume makeup are being urged to check them carefully before use. A leading London dermatologist warns that cosmetics opened and stored for months may no longer be safe to put on skin, especially around the eyes.
The warning comes as research from Aston University found that between 79% and 90% of used cosmetic products tested were contaminated with bacteria. The study looked at everyday items including mascara, eyeliner and makeup sponges.
Why old Halloween makeup can be a problem
Reusing leftover face paint might seem like an easy way to save money. However, products that have sat in a cupboard since last October may have deteriorated, particularly if they’ve been exposed to heat, moisture or lots of handling.
Dr Conal Perrett, consultant dermatologist at The Devonshire Clinic in London, said: “People often keep Halloween makeup from one year to the next without checking whether it’s still suitable to use. Unlike products in our everyday makeup bags, face paints and special-effects cosmetics can spend months sitting in cupboards or drawers, and we may forget when they were first opened.”
He added: “Applying contaminated makeup may lead to irritation or infection, especially when products are used close to the eyes or on already sensitive skin.”
Changes in smell, colour, texture or consistency can be a sign a product has gone off. But contamination isn’t always visible, so makeup can look perfectly normal and still be unsuitable to use.
It isn’t only old products that can cause trouble. Heavy face paints, costume adhesives and some pigments can aggravate existing skin conditions, while fragrances and preservatives may trigger reactions in people who are sensitive to them.
“People with eczema, rosacea, acne or sensitive skin may find certain formulations particularly troublesome,” said Dr Perrett. “Choosing products designed for cosmetic use is important.”
Five ways to protect skin from Halloween makeup
1. Check old makeup before reusing it
Throw away anything past its recommended usage period, or that smells odd, has separated, or has changed in texture or colour.
Dr Perrett suggests looking for the period-after-opening symbol, which usually appears as a small open jar with a number and the letter “M”. This shows how many months the product is recommended for use after opening.
2. Don’t share face paints or applicators
Sharing makeup, brushes and sponges can pass microorganisms from one person to another, particularly when products go near the eyes or mouth. Always use clean applicators and avoid dipping dirty brushes or sponges back into products.
3. Patch test new products in advance
If you’re trying a new face paint, adhesive or costume cosmetic, test a small amount on the skin beforehand, following the manufacturer’s instructions.
“A small test can help identify some reactions, but it doesn’t guarantee that a product won’t cause an allergy or irritation,” Dr Perrett explained. If you notice itching, burning, redness or swelling, remove the product straight away and don’t use it again.
4. Don’t leave heavy makeup on longer than needed
Halloween fun can stretch late into the evening, but wearing heavy makeup for hours may cause discomfort, especially for sensitive skin. There’s no single safe time limit, so follow the manufacturer’s instructions and take makeup off promptly if skin starts to feel uncomfortable.
5. Remove makeup gently before bed
“Never sleep in Halloween makeup,” Dr Perrett warned. Use a suitable makeup remover, then a gentle facial cleanser to lift any remaining residue.
Avoid harsh scrubbing, particularly around the eyes, as this can irritate skin and damage its protective barrier. A gentle moisturiser afterwards can help ease dryness.
What to do if Halloween makeup causes a reaction
If skin starts to sting, burn, itch or develop a rash, stop using the product and remove it gently. Don’t apply more cosmetics or use harsh exfoliating treatments, as these could make things worse.
Mild irritation may settle once the product is removed. If symptoms persist or get worse, seek medical advice. Significant swelling, especially around the eyes, or any signs of infection should be checked promptly.
Dr Perrett said: “If you’re unsure when a product was opened, how it’s been stored or whether it’s still suitable to use, replacing it may be the safest option.”
