What's a good product to prevent stretch marks?

I use Vaseline intensive care every day all over my body. I have no stretch marks I think because I keep my skin wrapped up while I lose weight. I also think it's very important to lose two pounds a week and not too much at once.

Palmers cocoa butter and bio oil together I've heard great things about.

Also walking a min of five miles a day while pregnant will prevent you from gaining too much weight. I ate a LOT of fruit and spinach after birth.

I Used bio oil and sometimes coconut oil with my first pregnancy and I have no stretch marks...

I use Burts bees belly butter, 40 weeks, no stretch marks.

Thank you @caracross1 @karina22 @islanddreamer07 @santistevanmommie