Lifeng focuse on feed addtive for 30 years,We have FAMI-QS, GMP+,FDA, ISO, Kosher, Halal etc certifcate. As one of the world’s most competitive feed additive providers, we produce for many big internatianal group, Our main products include cholesterol, sodium butyrate,25-hydroxy vitamin D3, bile acid, betaine, phytase, protease,probiotic etc.