Bio oil works amazing on stretch marks, I never had anything else work. They wouldn't work any good on me, bio oil has worked amazing
Cocoa butter is the best i'm 38+4 weeks now and still don't see any stretch marks and the ones that i did have before i got pregnant it made them fade to where you really have tk look to notice them
I am 19 weeks pregnant and i started gettin stretch marks a few weeks ago. But i started using coca butter lotion bcus its the only smell i like atm and it hasnt made any stretchmarks keep occuring. But if u wanna try using bio oil. It does help fade the stretchmarks. My friend uses it and says its good. I personaly wouldnt buy it bcus of the price. But give it a try anyhow and see how u get on:)