How Long Will an Opened Bottle of Perfume Last?
Depending on the fragrance, from six to 18 months, if stored correctly. Once a bottle of fragrance has been opened it should be used because all fragrance deteriorates with time: light, citrus-based perfumes in as little as six months; floral scents in about a year and a half.
The packaging which helps keep perfume the longest is the spray forms rather than regular bottles because an atomizer admits less air than a bottle with a screw-on cap, limits contamination and slows down the evaporation of the perfume.
