3 weeks later and nails are still on. My concerns were that before the treatment the therapist severely filed my nails so that they became really thin - even more so than when I've had acrylics done. SNS nails are meant to help make brittle nails stronger, but this is just as bad for your nails as acrylics. Additionally they're quite thick and look like acrylics too. A friend has them elsewhere and says this is not normal.