MiraLAX is a polyethylene glycol (PEG 3350) laxative powder that provides gentle constipation relief. Unlike stimulant laxatives, MiraLAX is a non-stimulant osmotic that works naturally with the water in your body to hydrate, soften, and ease stool through the colon. Since becoming an over-the-counter product in 2007, it has been the #1 Physician Recommended OTC brand of laxative, offering relief without harsh side effects like cramping, bloating, sudden urgency, and gas. Convenient and tasteless, MiraLAX dissolves easily in any hot or cold beverage and typically produces a bowel movement in 1-3 days.