Clonex Gel is guaranteed to be effective for up to two years if the recommended guidelines are followed.

These guidelines include not dipping directly into the Clonex bottle; instead, always decant the required amount and dispose of any excess. Store the Clonex in the refrigerator where possible, or in a cool, dark place. Clonex gel liquefies when exposed to warm conditions. Its viscosity will return once it is placed back into cooler conditions.