Nervous System Tonic features Skullcap extract prepared from fresh (never dried) Scutellaria lateriflora plants grown on fields they farm in southern Oregon. It also features Oat Seed extract prepared from the fresh (never dried) seed of Avena sativa grown on Herb Pharm's own Certified Organic farms. The herbs in this formula are individually extracted to provide a broad spectrum of plant compounds. Herb Pharm assures herb identity via macroscopic and organoleptic analysis, then confirms it through methods such as HPTLC fingerprinting specific to each herb. The formula is easily dispensed, taken in liquid form and added to water or other liquid.