I never tried oxy powder. It seems to be somewhat expensive at $45 for 120 capsules(that is $1.50 for each 4 capsule serving).
I use guar gum for detoxification. I take a cup of water, and put a spoon of garlic powder, and half a spoon of cayenne powder, and perhaps 1/4 spoon ground cloves, some olive leaf extract, and perhaps the contents of two candida clear capsules.
I stir in half a spoon of guar gum, stir it well, and drink it quickly. Around 20 minutes later I drink a glass of plain water(make sure to take in enough water when using a fiber supplement).