Bio oil isn’t too bad but I think it runs out really quickly, I used it when I first started getting stretch marks when I was pregnant & it did start to fade them, but my daughter was just to big for me and my skin just ripped all over & no amount of bio oil could fix that, I have them on the backs of my legs too, behind my knees, they are horrible. The palmers stretch mark cream doesn’t work, I’ve tried that too. Palmers do a scar serum, tiny little bottle costs