I haven't taken it yet, but pet owners and horse owners swear by it, and you know how we pet people are, we won't let anything hurtful come near our precious fur babies! Andreas prescribes it all the time to his patients so ... no worries there! :)
Paragone is a weaker product than Parastroy. The woman who started Paragone used to work for Parastroy and started her own company, but word is she cut corners. The ingredients are the right ingredients (per Dr. Clark), but not as strong as they could be for the price.