These are all old wive's tales of treatments. Cocoa butter, vitamin E, etc. doesn't really do shit for them. If they did there wouldn't be hundreds of thousands of pregnant women with stretch marks. There really isn't much you can do once you have them except tan. You'd be surprised how many pros have huge stretch marks but are photoshopped out in the magazines and covered up with that goobly glop dark lotion they use in competitions.