Knowing what you’re putting in your body is important. Sealed with trust, our TRU-ID® certification is the mark of pure ingredients from pure sources. When you see the TRU-ID® logo on Jamieson products, you can be assured that every active ingredient has been 3rd party tested by the University of Guelph for purity. DNA testing traces and verifies the active plant and probiotic species right back to their specific living origins, thus certifying their authenticity and verifying their potency. That is the TRU-ID® promise: That what’s on the label is actually what is in the bottle – nothing more, nothing less.