Dior 999 is a classic lipstick under Dior brand and one of the best-selling products in Dior lipstick. The shelf life of lipstick usually refers to three years in the unopened state. After opening, the shelf life will be shortened to one year due to exposure to oxygen and environment. After the shelf life, the quality of lipstick may change and even cause irritation to the skin.

To be safe and effective, don't use expired Dior 999 lipstick.