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.