Dr. Nowell, the instructor at the Dominion Herbal College of Vancouver, B.C. says, "We have made and used composition powder for over forty years. When we state we regularly mixed it in batches of sixty pounds the student will readily see that we have had at least some experience with it. As a remedy in colds, beginning of fevers, flu, hoarseness, sluggish circulation, colic, cramps, etc. We believe it has done more good than any other single preparation ever known to man. If this compound were kept in every home, and used as the occasion arose, there would be far less sickness.” This Composition Powder is safe for anyone, children and adults alike; it’s very effective in breaking up colds, flu, etc. All encapsulated products are in a pure 100% vegetable based capsule.