All of our Liquid Herbal Extracts are prepared according to precise Good Manufacturing Practices and with individualized formulations or processes, which enable each herb to be extracted according to its own unique physical and biochemical characteristics. This attention to detail produces a finished extract which optimally represents the herb from which it was made. Our extracts are very rich in the aroma, taste and bioactive compounds of the original herbs themselves. We use pharmaceutical-grade, certified organic alcohol to make over 90% of our liquid herbal extracts. Available in amber glass bottles in 1 oz. & 4 oz. sizes (with glass droppers), and in 4 oz., 8 oz., 16 oz., & 32 oz. sizes (with polyseal caps). All bottles are protected with a tamper-evident seal.