I am not real sure about the potency of Clarkia. I do know that HUMAWORM has more types of parasite killing and body restoring ingredients. Two weeks is not reaaly long enogh for a proper parasite cleanse - this is a toughis, but if you hav already ordered, I would say go ahead and do the HUMAWORM for the full 30 days. Then wait at least 90 days before you do any other parasite cleansing.