Graduated in economics, Millly Schär-Manzoli was an author of books and also a scientific journalist who has published many articles on medical and pharmacological issues.
She has been active since 1978 in the Swiss Anti-Vivisection Movement and she was chairman of the ATRA (International Association for the Abolition of Vivisection) and OIPA (International Organization for Animals Protection).
She also was chairman of the Swiss Antivivisist Community and general secretary of the LIMAV (International Medical Association for the Abolition of Vivisection).