Eylure pro brow dybrow dye kit brown dark glossy browns up to 45 days easy and safe to use up to 12 applications sensitivity test 1 mix 1cm of dye cream with 3 drops of activating solution 2 apply a small amount to a small area on the inner bend of the elbow or behind the ear 3 allow to dry and leave uncovered for 48 72 hours if no irritation or rash occurs during this time the chance of a reaction during treatment is very much less but is never certain if any sig