ON-THE-GO and CONVENIENT: We designed the patch so that you feel comfortable whenever period pain, pelvic pain or abdominal cramps strike. You can take LILAS with you everywhere you go unlike a hot-water bottle or heating pads. You will barely feel it there except for the pain relief. CLINICALLY TESTED: Our products have been tested in clinical settings and by practicing doctors on patients with period cramps. You can rest assured that your menstrual pain and endometriosis pain will be relieved safely and effectively. ALL NATURAL INGREDIENTS: We use all-natural, plant-based herbal ingredients (Menthol) as an active pain reliever for your menstrual cramps. Unlike traditional heat patches, ours are safe to use. FAST ACTING AND LONG LASTING: Our patented sustained-release technology ensures that pain relief starts immediately and continues for 12 hours. Just apply and go about your day with no worries of menstrual pain. PERIOD PAIN AND CRAMPS RELIEF: Specially designed by women to ease, relieve, and control muscular tension associated with PMS, menstrual cramps, endometriosis, PCOS. Works like a heating or cooling therapy for periods with herbal ingredients.