From now, using cosmetic and perfume calculator you could identify the manufacturing date of vintage perfumes for several brands like Giorgio Armani, Guerlain, Hermes, Van Cleef & Arpels.
Unfortunately some brands having their batch codes repeated each ten years. Due to that fact, batch code could have multiple meanings. For example, the same batch code could be read as ‘manufactured in 1986’, ‘in 1996’ or ‘in 2006’. To determine exact production date, you have to look at other criteria, like presence of ingredients list on the package, production period of specific perfume, know when the brand was owned by different companies etc. You can find more detailed information in this blog.

As a part of this update, support for Lalique and Serge Lutens has been added.
Support for Kanebo has been returned back.

We got unverified notice saying Shiseido does not include production date information into the batch codes anymore. Instead, they generate unique character sequence for each batch, and record correlation between production date and such batch code into the databases. If this information is correct, it’s possible to identify manufacturing date of a product only having an access to the company internal databases.
As previously mentioned, this information is unconfirmed. We’re trying to clarify and verify it. Until this will happen, support for Shiseido has been removed. We’re sorry for inconvenience.
Please contact us if you have any information regarding Shiseido batch codes.