A Keratin Lash lift is a chemical treatment that lifts your natural lashes leaving them with a beautiful curl which creates an illusion you used a lash curler. This service takes 1-1.5 hours and includes the option to tint your lashes. Lash tinting is a product that is used to dye your lashes black. It lasts 2-3 weeks. A lash lift is a low maintenance service that lasts 8-10 weeks, depending on your lash cycle!