I've been using the Palmer's Cocoa Butter specifically for stretch marks also but have yet to see if it works. I am 25 weeks and already have bad stretch marks on my boobs (I was only an A-cup to begin with and now am a B-cup) But I agree that stretch marks are hereditary, but what the heck, I try the cream anyway, at least it's cheap! My mother had 2 kids and never got any stretch marks but my sister got them...so I guess I'll see pretty soon
Can't say we girls don't try!!