No worries for virilization as Erase is NOT hormonal - not sure where you heard that (those who know and have seen me can also attest to this since I've used it since it came out with little time off and aside from those intimidated by [lean] females with muscle I in no form resemble a "man"). On a sidenote, if you bought it for your girlfriend, please make sure she IS informed about what Erase is and possible effects that can occur, including disruption of BC (if being used) AND that she has legitimate reason to (i.e. not just a beginner or someone who wants to "get lean" with a "quick fix").
~Rosie~