We all know food goes out of date, but did you know that so do cosmetics? Nearly all consumers neglect expiration dates on their cosmetics, which is causing concern amongst skincare experts. The US National Institute of Health [1] commissioned a study which showed that 97% of people admitted to having used products which were well past their cosmetic expiration end date. The PAO symbol (period after opening) is present on all cosmetics packaging, informing consumers about how long to […]
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