I'm using leafs, there's a tea shop intown that sells certified organic chamomile, whole foods also has chamomile and sage in loose leaf form. I do have to disagree with DV's post on the tinctures. Many tinctures on the shelf are made with grain alcohol (65-80%) water + substrate. When evaporated what's left is essentially QWISO. HOWEVER, I do agree that dosing must be very cautious, know the chemicals you're dosing. Thujone is found in sage and is known in high doses to cause seizures, Common Sense would tell us dabbing Sage QWISO would potentially be very bad. KNOW YOUR SUBSTANCE! Bottom line. I however did make a California poppy tincture into QWISO and have done very very small hot knife hits with success.