One of my clients regularly has shellac but constantly finds that after a 1 week they start to lift at the ends. I know I am preparing them and applying it correctly as I have lots of other clients who don't have any problems and some manage to keep them on for 3 weeks and just return because of the gap from new nail growth. When I apply the colour to her nails it rapidly shrinks back and I have to wipe over the end again before I cure them. Does anyone have any suggestions. She loves having her nails done but is becoming frustrated that they just dont last. Could it just be that shellac isn't for her? HELP!