Pure artemisinin or Qinghaosu, the active constituent of the herb Artemisia annua(sweet wormwood). Good quality Artemisia annuacontains 0.3-0.5% artemisinin, so pure artemisinin provides hundreds of times more of the active constituent artemisinin than the whole herb itself.Allergy Research Group introduced artemisinin to the U.S. market more than three decades ago. Independent cell tests have verified its effectiveness, and we do independent potency assays on every batch, using HPLC. Allergy Research Group artemisinin is minimum 98.5% pure, and does not contain thujone.Serving Size: 2 CapsuleServings Per Container: 150Amount Per Serving: Artemisinin 200 mgOther Ingredients: Hydroxypropyl methyrcellulose, microcrystalline cellulose, rice hull concentrate, gum arabic, sunflower oilAs a dietary supplement, 1 or 2 capsules one or two times daily before meals, or as directed by a healthcare practitioner. Artemisinin is best taken as part of a program that includes appropriate liver support nutrients. Sensitive individuals may want to take with food.Not indicated for pregnant or nursing women. This product should only be used under the guidance of a qualified healthcare practitioner with ongoing monitoring of liver enzymes and hemoglobin during its use. In rare cases may cause idiosyncratic liver dysfunction. Combining with antioxidants or iron may theoretically decrease effectiveness.Keep in a cool dry place, tightly capped.