Non formalyde, and non latex free sensitive lash adhesive for professional lash artists. This can be used with classic and volume mink lash extensions only. Flexibility, carbon black glue for the most sensitive eyes. Can be used in lash rooms of humidity from 30%-70% and temperatures 50-75 degrees. Instantly bond and extensions may last up to 4-6 weeks. Please keep in tightly shut container. Shelf life up to 3 months.