Classic Sirens Song Halloween we recommend pre-lightening hair to

we recommend pre-lightening hair to a level 9

apply to hair that has been pre-lightened to a level 10 (blonde) before use

Don't use over braces

we recommend pre-lightening hair to very light level 9 blonde before application

Classic Sirens Song Halloween we recommend pre-lightening hair toSiren's Song is a neon blue green dye that glows under black light. For best results, we recommend lightening hair to the lightest level 10 blonde before use. Contains 118 ml Semi Permanent hair colour Glows under black light PPD and ammonia free Vegan and cruelty free Colours displayed are an indication only, it is important to research colours before selecting. Due to a large number of factors that can affect the final outcome, dye results cannot be