In the first 24 hours of having your lashes, the adhesive is working to fully dry/cure. If you introduce water too soon, this process will be compromised, and the extensions may fall off.
This is difficult, we know, but it is important. Clients who tend to sleep on a particular side or on their face notice an increased amount of lash loss. Waking up with lashes on your pillow means they are rubbing on the pillow throughout the night. If you sleep on a particular side, you may also notice lash loss in that corner. If sleeping on your back is not doable, an alternative to back sleeping is getting a silk pillowcase (not as effective, but still helpful).
Just as we need to wash and brush the hair on our head, we must also do so with our lashes to keep them healthy and squeaky clean. Any dirt, debris, or even makeup build-up will create retention issues. It is also very important to make sure you are doing this step before every lash appointment. This will give your artist the entire appointment time to focus on your lashes.
This means cleansers, makeup, etc. Oils will break down the lash extension adhesive, creating retention issues. Natural oils from your skin/face can also create this issue, so be sure to have a balanced daily routine. We advise against mascara, but for those emergencies, we do sell a mascara that is oil-free and safe for extensions.
Don't get us wrong, your lashes are durable. Touching them won't cause lash loss; however, the oils from your hands and repetitive touching/tugging will. Be mindful of these subconscious tendencies.
Lash retention will vary for everyone. Because of this, we advise scheduling a fill 2 weeks after your first appointment. After 2 weeks, you should re-assess your retention and amount of lash loss and discuss this with your lash artist. Schedule accordingly.