1. If the perfume has a shelf life, the expired perfume cannot be used.

2. First of all, there is a clear shelf life on the outer packaging of perfume, which is usually about 3 to 5 years. The main components of perfume are alcohol and essence, and the alcohol component can account for 6%-9%. In the process of using perfume, it is necessary to pay attention to keeping the seal, cover the lid and store it in a dark and low temperature environment. Don't use perfume if it has expired, so as not to cause skin discomfort.