All of Herb Pharm's 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. Herb Pharm's extracts are very rich in the aroma, taste and bioactive compounds of the original herbs themselves. They use pharmaceutical-grade, certified organic alcohol to make over 80% of their liquid herbal extracts. Non-GMO + Gluten-Free.Herb Pharm's Valerian Extract is prepared from the fresh, undried rhizome and root of Valeriana officinalis plants, which are certified organically grown on their own farm. To assure optimal extraction of Valerian's bioactive compounds, the rhizome and root is hand-harvested in autumn or spring and is then promptly extracted while still fresh and succulent.