Don’t sleep with a sleep mask or further curl your lashes yourself after a lash lift and avoid rubbing your eyes. Any of these actions can shorten the length of your results. Beyond those precautions, there’s really nothing you need to avoid. Mascara, makeup, cleansers, and makeup removers are all fine. Certain conditioning serums may help extend the results, but always talk to your aesthetician before using any serums on your lashes.