Similar to a regular hair perm, try to avoid wetting your eyelashes for 4 hours after your eyelash perm. Use a lash conditioner on your lashes daily. I carry one from Japan for $20. I use lash conditioner for first couple of weeks instead of mascara. When using mascara use a good quality mascara like Jane Iredale. The better you treat your lashes the longer the curl lasts. Also avoid waterproof mascara to ensure longer curl life.