A groundbreaking study reveals that 90% of makeup products harbor dangerous superbugs, posing serious health risks.
While many apply foundation with fingers or brushes, makeup sponges are increasingly popular. However, research published in the Journal of Applied Microbiology shows most are contaminated with bacteria that can threaten health.
Scientists from Aston University in the UK examined 467 makeup items from various individuals, including mascaras, lip glosses, and sponges. Shockingly, 9 out of 10 products tested positive for bacteria like E. coli and Staphylococcus, which can lead to severe infections.
Those with weakened immune systems face heightened risks of skin infections or blood poisoning, especially if used near eyes, mouth, cuts, or scrapes.
Makeup sponges posed the highest risk, with 93% contaminated. Experts attribute this to them being left damp after use, creating ideal conditions for bacterial growth. The study also found about 64% of products had been dropped on the floor without proper cleaning.
“Poor hygiene practices with makeup, especially sponges, are deeply concerning. We detected bacteria like E. coli—linked to fecal matter—on nearly every product tested,” said Dr. Amreen Bashir, lead researcher.
The team urges thorough drying of products after use.
Researchers call for uniform regulations on product shelf life. In the EU, cosmetics feature durability symbols (PAO and period-after-opening). In the US, however, no such labeling is required by law.
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