Magnesium sulfate / potassium sulfate / sodium sulfate
"I was terrified to do the bowel prep after reading reviews about it because there were way more bad ones than good but I'm here to tell you this prep is a piece of cake. This is coming from a 20 y/o, 130 pounds, and I hate water. I barely drink this much water in a week and I was still ok. I took the first dose at 8pm and by 815 I was going to the bathroom. By 11pm I had close to 25 bms so it definitely does its job. After I drank the prep the excessive hunger I had been feeling all day was gone! I wasn't nauseous whatsoever. I just woke up and took my 2nd dose 20 minutes ago and my colonoscopy is at 11! Great experience overall! I would definitely recommend it :)"