For experienced Lash technicians This is black adhesive with superpower and minimum evaporation in one bottle. The color of the adhesive can range from saturated black to gray. The adhesive force of the glue does not depend on its color. According to its performances it perfectly suits to experienced lash artists. Drying speed: 1 second. Minimum fumes and evaporation are one of the main characteristics of this glue. It will keep your lashes glued up to 8 weeks. The shelf life of the adhesive is 6 months from the producing moment. Expiration date after opening: 2 months.