One of the most frequent questions during my "How to prevent product lifting" webinar was "How to fix a product lifting underneath the nail? As the natural nails grows, it starts to separate."
This is truly a common problem.
Here is the solution.
#1 When doing the nail preparation, file off the free edge of the natural nail. It will help you to fit the form better and to apply the tip.
#2 As the natural nail grows underneath, file it off with an electric nail file during infill.
Here is the video of the steps for infill.
I hope it was helpful!