As with most hair colourants the storage of products needs to be considered. To ensure the Helyx Hybrid dyes work efficiently for the duration of the use-by date, Correct storage should be in a container or cupboard where light exposure is minimised. Excessive heat exposure should be avoided.
Unopened, the Helyx Hybrid dye will store for 3 years. If opened, the use-by date is 12 months.
