Pure artemisinin or Qinghaosu, the active constituent of the herb sweet wormwood (Artemisia annua), and oil derived from the same plant, total 200 mg of material per capsule. Good quality Artemisia annua contains 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.