A full set lasts about two to three weeks. Touch-ups are recommended after the initial full set application to refill any lashes that have cycled out. To maintain the full, thick appearance of a new set of lashes, a visit to your lash professional is recommended every 3 to 4 weeks. We also recommend that you clean and brush your lashes daily. Lastly, please avoid pulling, plucking, cutting, and oil-based products on your lashes between appointments. The first 24 hours of lashes need to dry so the glue can set.