The short answer: Roughly 5-6 weeks before every lash sheds, you’ll need iniflls at 2-4 weeks.
The long (and better!) answer: There are many factors at play here, including your individual lash cycle and your aftercare. You might be surprised to learn that everyone’s lashes have a life cycle and shed, just like the hair on your head! Once a natural lash’s life cycle is complete, the lash falls out naturally, taking the extension with it. Everyone’s lash cycle is a little different, but on average you should be experiencing a turnover of your natural lashes every six weeks or so.
If you want to maintain your lash extensions, we recommend infilling your lash set approximately every 2 – 4 weeks. By this stage, some lashes would have fallen out as new lashes have grown through. In an infill appointment, we carefully replace these fallen extensions with brand new ones! If you care properly for your lashes, your extensions will last longer (i.e. remove makeup correctly, don’t wear mascara, avoid oily products on your face, and avoid tugging/pulling at your eyelash extensions). Some clients who take extra good care of their lashes get 4 weeks before they need infills! If you happen to have very oily skin, you will normally need infills more regularly.