How can what be? They are cheap to make and enter the blood stream rapidly? To make a powdered herb or a syrup herb is far harder to do than make a tincture.
The tinctured herb has a self life of 100+ years, it should because it is mostly alcohol. I can make a syrup/tinctured combo that has way more herbs and still have a self life of 10+ years and as far as I know, I am the only person that makes herbal liquids this way. To me it is a superior way when it is practical to do so. The only 2 formulas I see as needed to stay in tincture is the Kidney Cleanse and the Pancreas balance, the rest can be made as a syrup/tincture and have the best of both methods in one.