We guarantee that the herbs will work, as they are alive! We do not guarantee any results such as healing or a cure as a result of taking any of our products because that's not being honest or ethical in our opinion as to heal or cure is a wholistic process and no one product (herbaceutical or pharmaceutical) or even numerous products (from Dherbs.Com or any other herbal company) can heal or cure. To truly and genuinely heal or cure from disease and sickness, You can purchase a MP3 on the subject called "HOW TO HEAL" as it deals with the wholistic approach to naturally healing. How could we know what people are doing behind closed doors while taking our products? People have their role to play in their healing and must be in control of their thinking or thought process, attitude, diet, lifestyle, and environment. Positive changes must be made in all of these areas and this is YOUR responsibility.