You could use a hair conditioner instead of soap. Maybe use a light oil in the shower, but just be careful not to slip. You could also use an oil-based soap as your shaving gel. Vitamin E is pretty good. Over time that will definitely help.
Cocoa butter is also helpful.
It depends on how bad the scars are though. My book is for all ages. I have recipes for children, recipes for mothers and daughters, teenage girls and senior citizens. My own daughters, who are 8 and 10, make things for their friends. Teenage girls focus on this for slumber parties.