... Detailed Product Description Chuanxiong Ligusticum Oil, extracted by CO2 from GAP base raw material, ... heavy metal, no solvents.. Feature Specification:Extracted by CO2 with know-how technique from GAP base raw ... for food and cosmetics.Ligustilide 20%: it can be used as active ingredients for health products and ... so on). In fact, this product must be produced by CO2 method due to its unstability.It's ...