Waist training has not been proven to help with stretch marks. General weight loss will reduce the size and appearance of stretch marks. We suggest moisturizing your skin daily with coconut butter or Shea butter. Keeping your skin moist will help reduce the appearance of stretch marks. Our Lady Dash Body Balm is rich in Shea butter and specially formulated botanical and essential oils that help to sooth, heal ad repair the skin. Finally, laser light treatment now has the capacity to help reduce the appearance of stretch marks and scars. Don't forget to own your tiger strips, women create human beings and that's amazing. Thank your body for what it's capable of and honor those marks for what they represent!