Palmers Cocoa Butter cream works pretty good. My wife just had our 4th baby and has had pretty good luck using that cream. I also read the following.....
The amazing thing about stretch marks is that they're not really caused by the skin "stretching". People associate stretch marks with weight gain or pregnancy and assume that stretch marks are caused by our skin stretching to fit around this new, larger body. The association is so strong that the name 'stretch mark' was given, only further adding to the misperception.
Hormones are the Cause
The true cause of stretch marks is hormones. That's right, hormonal influences are the cause. How can I support this fact? Well, when people gain weight, our hormones are produced and metabolized by fat cells. Hormones resemble fat and cholesterol, so when we gain and lose weight it affects the hormones in our body, and also the hormones in our skin.
Interesting?