Hi buttons, not sure about the glasgow thing as i am from dahn sarf, but nail extensions usually are acrylics. A false nail is glued on then acrylic put on top of the nail, buffed and filed, i have permanent french done (squoval) which is white acrylic and pink acrylic made to look like a french manicure. It costs 45 quid for a full set then you have to have infills done every two to three weeks and they cost around 20-25 squid. Make sure you use something like solar oil on them at least twice a day to stop them drying or lifting too. There is a difference between acrylic and gel nails but only about the products they use. We'll make a footballer's wife of you yet!