Detailed Product Description Chuanxiong Ligusticum Oil, extracted by CO2 from GAP base raw material, Ligustilide 10%-40%, no heavy metal, no solvents.. Feature Specification:Extracted by CO2 with know-how technique from GAP base raw materialLigustilide 10%-40%No heavy metals, no solvent, Functions:Activate blood and circulate qiExpel wind and relieve painExpand coronary artery and strengthen ...