Bottles produced before 1st of October, 2019

The bottle is marked with a batch number and a production date in YYWW format, which consists of the last four digits.

For example, if the numbers are 1938, that stands for week 38 of 2019.

Bottles produced from 1st of October, 2019

For clarity, the production date is changed from YYWW to MMYYYY format.

A typical production date will now read 092019.

The expiration date depends of the product. Earlier, the shelf life of Polarshine compounds has been 2 years from the marked production date.
This has now been expanded to 3 years for the following Polarshine products: 20, 15, 12, 10, 8, 5, 3, Liquid Nano Wax, E3 and Polarshine 45.
The shelf life of Polarshine 35 and 25 remains at 2 years.