What is exploiting the supplement (Y16) in the product name ???

"Good day Mr. XXX,
Thank you for your feedback. They inquire about the difference of two Florena found on Amazon Facial Care - Anti-aging against premature skin aging anti-wrinkle night cream with Q10.
To this end, we inform you that the product without the addition Y16 is the current version. The Y16 is with its predecessor, which probably no longer expected to be within its shelf life.
Y16 has no significance other than that it distinguishes between the versions of each other.
...

Best regards
Your Florena info team "

I think this information should mitliefern reflect actual travel provider in Amazon store. Because of the lack of information I rate the products with only an asterisk (*).