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  4. How long can a product be kept without having been opened?

How long can a product be kept without having been opened?

Left unopened, the conservation duration of cosmetic products is set at 30 months by a European Directive. Biotherm guarantees the quality of its products for a period in excess of this under the appropriate storage conditions, i.e.: away from excessive heat and moisture. If you want to know the expiry duration of your product, you can let us know its batch number by clicking here (link to Contact us). You will be asked for the two letters followed by three digits (e.g., XB250), and we shall inform you of its date of manufacture.