Have you ever tried Mag07, by a company that was called Aerobic life, now changed to NB Pure, same formula...have used for years. It is oxygenated and really works...they have to call it a colon cleanse, but most use it nightly two hours after your last meal. I require two capsules, I would never take 5. It is GNC's top selling item. I get mine at the Vitamin Shoppe...been on it for years, its been around for years...you could consider it pricy 180 capsules for around 38 bucks...but worth every penny. It moves things well!!! Oxypowder is similar. This is large molecule magnesium that can not entercyour bloodstream...goes straight for the colon...and out...I have turned many doctors and friends onto it. They have never advertised..but I would not be ever without it. It is the oxygenated way its made, just do not buy on amazon...I don't trust that. It really works!!! Justvdo not take too much, ya gotta find your own dose.