My nails have got so much stronger since I've been using the gel. Every so often I give them a rest for a week or two, and plenty of nail oil, but if I leave them naked for too long they start to get thin and split.
Debih, I'm not sure I can recommend the Sensationails. I like the polish and it lasts well, but the lamp has gone a bit dodgy now. Whether it's just a cheap version or whether the lead has come loose I'm not sure, but it seems to have only lasted for about two years.