The waist trimmer is fastened to the abdomen with a moderate degree of tightness with Velcro tape.We recommend applying Abs of Steel twice a day to the target area and rub it firmly against your skin until it is fully absorbed.Please avoid the face and neck.For best results, apply 15 minutes prior to workout and shower & sleeping.Feels a little heat right after application.Make sure the cream is completely dry before wearing clothing or underwear that touches the skin.Wash hands thoroughly with soap and water after each use.Note: For best results, we recommend using Abs of Steel along with regular exercise and healthy diets.