This adhesive is specifically produced for eyelash extensions. Extreme PRO Adhesive drying very fast (2 seconds). Extreme PRO Adhesive 10ml holds powerful bonding and flexibility. Adhesives fumesand odor are removed to the minimum, so there is less risk of allergic reaction.The permanence is approximately 6 to 7 weeks. This adhesive is liquid and colour black. Shake well before every use! The adhesive is of high quality and medically approved. Only for professional use.