The following brands have been added: Avon, Giovanni Cosmetics, La Roche-Posay.
Minor fixes in production date calculation for Guerlain and Shiseido.

What is Cosmetic Calculator? It is an online service that enables you to determine date of manufacture and general shelf life period by the product batch code for your cosmetics and perfume.
Such way, you can check if cosmetics or perfume is still fresh until you will be able to get this information from customer care department.

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