How long has Relizen been on the market? Bonafide Health November 15, 2019 15:17 Updated Follow Relizen was launched in the US in 2014. In Europe, it has been used by over a million women, since 1995. Related articles Will Relizen shorten my menopause? What are the ingredients in Relizen? Is Relizen approved by the FDA (Food and Drug Administration)? How long does Relizen take to work? Is Relizen non-allergenic? Comments 0 comments Article is closed for comments.