I tried Oxypowder for a week and it seemed that it only liquidified what I'd eaten the day before. I think most of the Oxypowder that you take is used on the most recent bms. It may work better for people who are fasting because then it would have to work on the colon walls.
I tried to alternate with Oxypowder and p&b shakes and I think the oxypowder tried to liquidise the shakes and never reached the 'mucoid plaque'
I also tried P & B and for a few days I got some old stuff and parasites out, but the clay was too strong and the shakes made me constipated. I may try the p&b shakes again for a week but I would probably take a laxative with it too keep things moving.