💜Belle's answer💜
It is hard to expedite the initial adhesion to 0.5 to 2 seconds, but it is also recommended to remove foreign substances, proteins, and oils attached to the natural eyelash with Lash shampoo or Lash cleanser so that the natural eyelash and false eyelash can adhere well. Applying Pre-treatment on the natural lashes and Primer on the false eyelashes after Lash shampoo or Lash cleanser could increase the glue's adhesion, which can speed up the initial adhesion of the glue and further help to prolong the retention of eyelash extensions.