WHEN DO SKINCARE PRODUCTS EXPIRE?
The obvious answer is that a product expires when it no longer works. But when it comes to moisturizers, how does one really know? And how old does a shampoo bottle have to be before it stops cleaning the hair? Products lose their effectiveness slowly over time and of course, this depends on the conditions under which the products are stored. Products stored on a window sill exposed to the heat of the sun become less effective sooner than the same product stored in a cool dark cabinet.