I don't think there is a product that erases stretch marks especially after they are old. I used this lotion during my pregnancy about 2 years ago. I trust Clarins brand in regards of use of natural ingredients for my skin. I didn't gain a lot of weight but my belly was outrageous big having had a full term 9 lbs baby. So I recommend it as a preventive, use it after the shower and at night to see some results.