My nails used to break off all the time and I had to cut them very short. They fractured and peeled at the edges, I couldn't even use them to open tight jar lids or anything that would put pressure on my nails. It was awful. Then a pharmacist recommended this product. It is similar to nail polish, but it is a little different in composition. If you paint your nails with it about once a week, the new nail will grow out strong. Now I can grow long nails, sometimes people even ask if they are fake because they are so long and good-looking. Also it CURES nails: I don't even need to use this anymore. Sometimes I do though because it gives such a nice shine. Well worth buying if you have weak nails.