Hi, I spoke to my obstret about the benefits of peren massage, and he said that it really depended on how elastic your skin is.. and thats usually hereditary. A good indication is stretch marks, if you have them then the chances are your skin is less elastic and that massaging it, and using an EpiNow (sp?) device is useful... Just found out about Epinow.. a device that gets inserted and pumped while inside you to aid with the stretching. Between $180 and $200 for chemists. The mid-wife at the hospital swore by it..