Menstruation is a monthly challenge for billions of women and girls worldwide. On any given day, more than 300 million girls are menstruating. With support from the Bill and Melinda Gates Foundation, PSI sought a deeper understanding of access to menstrual hygiene management (MHM) products for girls and young women, including the roles of the commercial market and global health community. Qualitative and quantitative research was conducted over 2017-2018 in two states in India and four cities in Ethiopia. This presentation outlines the product preferences, motivators and barriers related to access to MHM products for Ethiopian adolescent, summarizes the MHM commercial market performance and supply constraints, and identifies potential market development opportunities to increase access to preferred products and meet the menstrual health needs of AGYW.