Over- or under-processed lash lifts happen when the solution isn’t timed correctly for the client’s lash type. Over-processed lashes can look frizzy, brittle, or overly curled, while under-processed lashes may appear flat with little lift. The key to resolving this? Always assess your client’s lash thickness and health before choosing processing times, and err on the side of caution. If you notice an over-processed lift, focus on nourishing treatments and advise your client on aftercare. After about 8 weeks, you can perform another lash lift. For under-processed lifts, you can safely re-lift after a few weeks with adjusted timing. The real secret is customizing every lift to the client in your chair—not just following the clock. Lash lift, lash lifting, lash lift tips, lash extensions, lash training, lash educator, lash styles, lash artist, lash business, explore page