Is it under the bottom of ur product?
This is the lot no.of product...
showing the production date of the product...
As clinqliue is under Loreal..this system is the same as all brands under Loreal.
English word represents the year of productation.i.e.A=2004,B=2005,C=2006....
Number represents the nth day of making the product..i.e.the 20th day...
so,A39 means...2004 yr the 39th day making product.
F39 MEANS 2009 yr the 39th day...