The reason why the shelf life of the unsealed Lancome small black bottle will be greatly shortened is that some bacteria will enter the Lancome small black bottle from the moment of unsealing. With the increase of use times, the bacteria and pollutants in Lancome small black bottle will only increase.
Basically, 4-6 months after opening the bottle, Lancome small black bottle must be used up. In order to avoid some pimples or allergic reactions caused by using expired Lancome small black bottles.
Extended data:
Expired cosmetics have magical effects:
Emulsion. Alcohol lotion can be used to wipe desktops, telephones, mirrors, tiles, etc. When printing clothes and furniture with a ballpoint pen, pour the lotion on a cotton swab, dissolve the ink, then rub it with soap and rinse it with clear water to remove it.
Emulsion. The emulsion composition is suitable for treating oil stains, and also has the function of protecting leather such as leather furniture, leather shoes and wallets. The crayon marks drawn by children on the wall can also be erased with emulsion.
Nail polish. The surface of metal buckle and belt buckle can be coated with transparent nail polish, which not only looks shiny, but also can avoid metal oxidation and blackening. When buying new clothes, put some nail polish on the thread of the button to prevent the button from falling off.
Mascara. Hair roots have white hair, which can be dyed with mascara. If there are cracks in the furniture, you can also use mascara of similar color to make up the color. When the hair is unkempt, spray the styling spray on the mascara to smooth the short hair. In addition, the eyelash brush can also hook off the hair in the drainage hole and brush the joints of ceramic tiles.
Perfume. Perfume contains alcohol and can also be used as a cleaner. When dripping on the cloth to wipe the furniture, it can dilute the oil print and remove the tape traces.
Baidu encyclopedia-Lancome black bottle
People's Network-How long is the shelf life of cosmetics? What should I pay attention to when cosmetics expire?
People's Network-Expired cosmetics have wonderful uses.