Our crystals have a 2 -month DDM.
To best preserve your crystals, It is advisable to remove them from their original sachet upon receipt And keep them in a dry place, out of humidity, to avoid any risk of mold.
Do not put in the fridge.
If the crystals are intended to be offered, They can stay an additional week in their original packaging. However, make sure to transmit these conservation instructions to the person who will receive them.