Yes plzchuckle knows a lot.
I thought I tell you what I did with the Humaworm. Since I have been cleansing for several years and used Oxypowder , I asked him to make the Humaworm without any of the bowel cleansing herbs. What he did.
I would think (less knowledge than plzchuckle) when you use the Humaworm, since the Bowel Cleanse (see ingredients)is already build in you don't need the oxy.