Perfume usually has a shelf life of 3 to 5 years when unopened, and 1 to 2 years after opening. The shelf life of perfume is affected by many factors, including ingredients, storage conditions, packaging, brand, and frequency of use. Perfumes with more natural ingredients have a relatively short shelf life, while perfumes with more chemically synthesized ingredients may have a longer shelf life. Storage conditions are also very important. High temperatures, direct sunlight, and humid environments will accelerate the deterioration of perfumes. Well-sealed packaging can effectively extend the shelf life of perfumes, while frequent use will increase the chance of perfumes coming into contact with air, thereby shortening their shelf life.
In order to extend the shelf life of perfumes, it is recommended to store them in a room temperature, dry, and light-proof environment, and choose well-sealed packaging. In addition, using perfumes reasonably and avoiding frequent opening of the bottle cap can also help maintain their quality and fragrance.