Women report many changes to their bodies during and after pregnancy. During the months of pregnancy, a woman gains a significant amount of weight. This in turn results in the skin being stretched out in a short period of time. The Mustela Stretch Marks line was developed in order to provide a solution for new moms hoping to improve the appearance of their post baby bodies. There are also Mustela Stretch Marks products that can be used during pregnancy to help prevent and reduce the severity of stretch marks.