most do massages with cocoa butter that has no to low mineral oil. some add herbs to this 'boobie batter'. most either add or already have vitamin e. look at the main page. at either helen lisa or pansyclubs massage techniques. also look at an interesting article in general info. about cocoa butter. hope this helps. good luck.
i read the article and yes it seems to be the same as Sunset rcommended. It's worth a try definately. I remember trying it for some time during the summer but now i read that my E-vit was way too low in comparison with cocoabutter. It makes 400mg per 7g cocoabutter which is a bit of butter to 4 capsules of E-vit. i mixed a bit for myself now, opened the capsules of E-vit to pure cocoabutter. what i don't like is that it takes a long massage to absorb and makes me guess where the mixture absorbs, my hands or my breasts.
and a funny comment: if the 100g of cocoabutter takes 11 hours of continuous massage to absorb then in theory i could end up having a bigger cup by the end of the day. If only i had a volunteermassager ;)