You should try to avoid getting your new lashes wet within the first 48 hours. The water will react with the eyelash extension glue and cause a flash cure. This is a little like cooking a chicken from the outside in – cooked on the outside and frozen on the inside. Basically, water will cause the lash bond to become brittle and break.
After the 48 hour period, you’re safe to shower again. It’s a myth that you should never get your eyelash extensions wet once having a new set, in-fact quite the opposite!