Today's side deal gets you a 40-minute colon hydrotherapy session at Natural Flow for $45, a $90 value. You'll also have the option of getting an abdominal massage and foot reflexology from Natural Flow's colon hydrotherapists during the session to ease the process along. Natural Flow leaves it up to the client, as some prefer more-private sessions.

Colon hydrotherapy is a safe, gentle process that has been used at least since the ancient Egyptians in 1500 B.C. to cleanse the entire colon with warm, filtered water. In the process, it also removes the toxins that build up inside us due to the air we breathe, the food we eat, and the hurried way we eat it. Natural Flow lets you lie back with your choice of music on a special medical table while a drain line discreetly removes the waste and eliminates any offensive odors. The table is thoroughly cleaned and disinfected following each treatment.

Dr. Vitaro and her staff are all certified by the International Association of Colon Hydrotherapy (I-ACT) and use FDA-registered equipment to make the experience as calming and comfortable as possible. Many report leaving with increased feelings of well-being, more energy, and renewed vitality. This Groupon expires in three months, so call ahead to schedule an appointment.