【Introduction】: yellow white powdery extract product of Boswellin .
【Main ingredients】: resin 60-70%, gum 27-35%, naphtha 3-8%. Main ingredients of resin: free a, B masticolic acid 33%, integrated masticolic acid 1.5%, olibanoresene 33%. Gum is calcium or MG salt of arabic acid 20% , etc.