If your Fix ‘N’ Flash tips keep popping off or not sticking to your nails, you may not have cured them properly, or your nails haven’t been prepped correctly. Make sure you have buffed the surface of your nail bed, and you’re flash-curing the tips for 5 seconds while holding them in place, finishing with a full 60-second cure to set them properly.
Also, always make sure the tip is the right width for your natural nail bed; if it’s too small, you may find the gel tip trying to curl or pull away from your natural nails, causing them to lift off.