I don't know what brand of cosmetics you have, but according to the batch number, it is a brand of Estee Lauder Cosmetics Group. Estee Lauder (el), Clinique, etc. all indicate the production date in this way.

Your product was produced in August 2006. The shelf life of general skin care products is 3 years, and that of cosmetics is 5 years.

Most of them are three-code batch numbers, such as A86.

The first letter a stands for place of origin.

The second number 8 represents the month.

The third number 6 represents the year.

So it was made in August 2006.

As for the month, it is expressed as:123456789bc * * *1February.