Mix 2cm of tint with 10 drops of 10 Vol Peroxide. Apply the mixture to the eyelashes and leave for approximately 5 minutes. Then remove with warm water. Eyelash protective sheets must be used with this product.PATCH TESTING ADVICE:Your client patch testing must be in accordance with your insurer’s guidelines. Where there isno guidance from the insurers, our recommended guidelines are as follows:1. New clients should be patch tested in advance of first-time treatments taking place.This must take place at least 24 hours prior to their appointment.2. Clients should have a patch test re-performed every six months thereafter, regardless of the number of treatments received since the initial treatment.3. Clients should be patch tested if there is a change in their medical circumstances.This includes a change of prescription medication or the diagnosis of any chronic, life-limiting or life-threatening condition.4. You do not need to patch-test your clients before every treatment. However, re-testafter any lapse of treatments longer than three months.Please note the above advice is applicable to Strictly Professional Eye (SPE) products only.