Allergies are not to be taken lightly. If you have a history of allergies, proceed with EXTREME CAUTION. The EcoColors Black Pro is sold only in the professional line. You should still order the free allergy test for Dark Ash Brown and Black. Though this will not give a JET black color, it will be a very dark brown. Doing the allergy test BEFORE EVERY application is always recommended, as many allergies develop over time.