Bye, Bye Stretchies DuoProactive care for stretch marks. Includes bestselling stretch mark products. Minimizes new stretch marks and promotes fast healing. Features Tummy Butter Stretch Mark Treatment (4 oz): Top selling belly butter that adds elasticity and minimizes scars. Features Remodel Stretch Marks Serum (1. 7 oz): Fast acting serum with 0. 5% retinol to reduce stretch mark size and boost cell turnover. Helps prevent and fade stretch marks due to pregnancy weight