What makes Eyz-A-Blue® so special is its thickness and neutral pH balance. Eyz-A-Blue® is formulated to stay in place and not melt or run while the permanent cosmetic professional prepares for the procedure. We do NOT recommend covering or occluding. Eyz-A-Blue® topical anesthetic should be applied to the unbroken skin of the upper and/or lower eyelash base, using a clean single-use applicator. Wait 20 minutes or until the numbing effect occurs and then remove the remaining Eyz-A-Blue®. Use of Eyz-A-Blue® should be limited to the eyeliner area. Care should be taken to avoid getting any anesthetics into the eyes or mouth.