Eucommia ulmoides seed oil was extracted from central Asia at critical low temperature.  Contains a lot of alpha-linolenic acid.  

The content of unsaturated fatty acids in seed oil of eumoides ulmoides was 91.18%. The fatty acids in eumoides ulmoides ulmoides were analyzed by capillary gas chromatography and mass spectrometry. Ten kinds of fatty acids were identified, including 67.38% linolenic acid, 9.97% linoleic acid, 15.81% oleic acid and 2.15% stearic acid.  Palmitic acid 4.68%.  Because of its unique lipid-lowering and anti-aging effect in human body, it has attracted widespread attention.  Liang Shufang et al. found the presence of cardamic acid in eucommia ulmoides seeds by gc analysis.