But this only refers to the unopened time, and it is best to use it up within 6 to 12 months after opening. Because Biosoft sunscreen contains perishable ingredients, and it will inevitably be eroded by pollutants such as bacteria, which will aggravate the expiration speed of sunscreen. Sunscreen is not very effective after the shelf life, so it is better to use it up within the specified time.
Biosoft is a beauty brand owned by Kao in Japan, which was founded in 1980 and is an old brand in the field of personal skin care. At first, Birou introduced facial cleanser. At that time, there were no cosmetics specially used to wash your face. Everyone used alkaline things to wash their faces. Biosoft is the first facial cleanser made of neutral raw materials.
Precautions:
The production batch number of Biosoft sunscreen is generally at the top, and the last four digits of the number are the production date. If the production batch number is T0000329, just look at the last four digits "0329", the number "9" represents 20 19, and "032" represents the production of 20 19 on the 32nd day.
Generally, if the sunscreen is placed for more than half a year, the sunscreen effect will become worse. Try not to use it on your face, but on your body. If the sunscreen expires, it can be used to maintain leather goods, such as leather bags, leather shoes, leather clothes and other items with small scratches, and can be wiped with a soft towel dipped in sunscreen.
Reference to the above content: Baidu Encyclopedia-Birou