How often does my client need a fill, and what does 7 to 8 weeks retention mean?Updated 2 years ago

Natural lashes are in a constantly growing and shedding cycle, any lashes that don’t shed naturally during that 7 to 8 week timeframe, should still be bonded to the natural lash, assuming proper aftercare has been used. When lashes are isolated and applied properly, you may naturally lose up to 50% of the lashes within 3 to 4 weeks. This is when your client will need a fill, they should still have approximately 50% of their lash extensions still on.