This is one of those all too rare products that actually does what the makers say it will do. I had been suffering from a nagging, persistent and not very productive cough for at least a year. 4 urgent Care visits and endless use of Guafenesin, other sundry cough suppressants, allergy meds of all kinds and Pantaprozole for GERD, all to little or no avail, I still continued with the coughing fits, sometimes scary, scraping and wheezing that seemed to be unstoppable. Then a week ago I stumbled on Mucus Clear. At first, I thought, 'yeah, a splash of this little liquid from an eye dropper is gonna fix this serious illness I seem to have!'. My endless manufacturing of mucus is gonna stop by using this tincture! But guess what it did! And within the first three doses! For 5 days I took .75 ml 3 times a day. By the 6th day I was so much better I reduced to twice a day. I am now pretty much normal, and am almost back to where I don't even think about coughing or wheezing anymore. You know, sort of like real person. After I complete this bottle, I intend to try life without Mucus Clear and see if life without constant coughing lasts as well. But just in case, I'll keep a fresh bottle on hand, while I search for other great products from Native Remedies.