WECOLOUR hair dye has a one-year storage life in the tube after opening. So if you don't need all of the product at one time, mix just the amount you need so you don't have to discard it. Saves you money and saves the environment.

The included activator (hydrogen peroxide) can also be kept for one year after opening, but please make sure to close the bottle properly with the cap and to store it in a cool and dark place.

Mixed hair dye leftover (colour cream mixed with the activator) has to be discarded.