I'm a Happy Event girl. My mum used it for all 3 of her pregnancies, never got a stretch mark. I'm now on my second pregnancy and at 31 weeks all looking good and I have used Happy Event religiously since about 3 months with both pregnancies. Only costs about $5.50 for a tube.

I am prone to stretchmarks - got old ones on my hips from weight gain as a teenager, so I swear by this stuff. I hate cocoa butter for what it's worth, I think it's overrated. Never tried Bio Oil.