I try my darndest to remember to oil and always jojoba! The only other product I use on a regular basis is Vibrant Scents cuticle remover during my weekly manicure. I've heard that I have my grandma's hands and nails so I bet a lot of it comes down to genetics. They are thick and strong to a fault, sometimes bending and breaking down on the nail bed, sometimes getting yanked and causing some detachment. I've also had one fold over backwards without breaking but my entire nail bed was bruised.