I've been having Shellac manicures every two weeks for well over 5 years with out incident. I had three gel manicures at The Ten Spot and after the third manicure my nails started to disintegrate. I had the gel removed, and my nails are destroyed. You can actually see large patches of red on each nail, which is my nail bed showing through what little is left of my nails. It will take many months to recover from this. I wish I had paid attention to the negative reviews. They are also outrageously expensive. Take your nails elsewhere.