Formula Overview Isatis indigotica root and leaf, extracted by maceration in organic cane-derived ethanol, organic glycerin, and distilled water as a single-herb liquid extract. A note from Evey Isatis indigotica is a botanical with a long history in traditional Asian herbal practice, where the root and leaf have been used to support immune balance and seasonal resilience. Herbal Vitality offers it as a single-herb liquid extract made by maceration in organic cane-derived ethanol, organic glycerin, and distilled water. What sets this formula apart is the practitioner-grade extraction. Liquid tinctures pull a different fraction of the plant than powdered capsules, capturing both water-soluble and alcohol-soluble constituents in a single bottle, and the cane ethanol and glycerin base keeps the extract shelf-stable without synthetic preservatives. This is a live-clean partner. Single-herb tinctures are one of the cleanest building blocks in a practitioner's toolkit, and the deeper why behind reaching for one is upstream of any single use case, in the daily rhythm of food, sleep, and seasonal awareness that immune resilience rests on. I generally suggest the labeled dropper dose in a small amount of water. Form: Liquid | 2 fl oz Disclosure: Evey Andersen, FNP-C, MSN, APNP, CISSN, is the owner of Green Medicine of Wisconsin and recommends this product based on clinical experience. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.