The Griffithsin (GRFT) fast-dissolving insert (FDI) is developed by Population Council. This fast-dissolving vaginal insert is an on-demand HIV prevention product for women and girls, including pregnant and breastfeeding women, designed for over-the-counter distribution as a non-antiretroviral option. Manufacturable in low- and middle-income countries, the safe, discreet, user-controlled, and portable fast-dissolving insert has activity against HIV, HSV-2, and HPV, and may be suitable for over-the-counter distribution. Building on favorable outcomes in animal models and with a new supply of GRFT in-hand, the GRFT FDI will be advanced through a new program of stability testing.