I've been using Oxy-Powder for years now, and find it excellent. However, with the recent price increase, I'm going to try Mag-O7 and compare. With Oxy-Powder, I like its flexibility. Once you get used to it, you can fit your dose according to purpose (regular daily support, or intensive cleanse). I take one capsule at night, about 2 x a week for gentle help with regularity. Then 2 capsules 3 x day for an intense cleanse, which I do a couple of times per year, or as needed if I'm feeling unwell. A great product!