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does a bottle of cologne/eau de toilette, once opened, have a limited shelf life? i know i've kept some bottles for a very long time, but are you 'supposed' to do this?Quote:
Depends...I read once that the "filler" liquids (usually alcohol) in most fragrances (even the pricer stuff) will alter the essential oils of a cologne as time goes on. So, unless you can afford the pure esential oil stuff, I'd only shelve it for a year or two.
Apparently a bigger issue is whether the cologne has contact with air or worse, skin oils from splashing it on. A spray bottle kept in a dark cool place will last a very long time, while a splash kept under bright lights and used in contact with the skin will deteriorate much more rapidly.