National American Menopause Society executive director, Wulf H. Utian, said, “The term ‘bioidentical’ has no basis in science and should be dropped from medical jargon. These are simply compounded hormones, period.”

Quoted from http://www.belmarrahealth.com/one-third-of-menopause-hormones-used-are-unapproved-untested-compound-drugs/