Knowing what you’re putting in your body is important. Sealed with trust, our TRU-ID® certification is the mark on our quality herbal and probiotic ingredients. When you see the TRU-ID® logo on Jamieson products, you can be assured that the active ingredients have been 3rd party DNA tested by the University of Guelph. DNA testing traces and verifies the active plant and probiotic species right back to their specific living origins, thus certifying their authenticity. That is the TRU-ID® promise: That what’s on the label is actually what is in the bottle.