MiraLAX is the #1 doctor recommended laxative for occasional use, providing effective, predictable and gentle constipation relief. As an osmotic laxative, MiraLAX powder works naturally with the water in your body to hydrate, ease and soften stool. Unlike stimulant laxatives for constipation, which make your body go by forcefully stimulating the nerves in your colon, MiraLAX’s only ingredient, polyethylene glycol 3350, provides a gentle experience that doesn’t cause harsh side effects, such as sudden urgency, cramping, bloating and gas. MiraLAX powder laxative easily mixes into any beverage and completely dissolves, leaving no added taste or grit.