Colosan and Oxypowder are oxygen based cleansers which can be called oxy cleanse. The different between colosan and Oxypowder is their supplemental form. I think Oxypowder is made in capsules and colosan is powder. Maybe opposite. Correct me if I am wrong. :)

I dont know if it is ok what your cleansing plan but I dont see any wrong anyway. I know it is good idea to do good Colon Cleanse after Liver Flush to sweep the toxins as fast as you can before it can be reabsorbed from colon into your blood.

Yeah I will say no to grape juice because of its high Sugar content. Vegetable juice will be better if this appeals to you.