You seem dubious about the market size of this. > This gel does nothing for people who just want to hookup because of the risk of STDs. So you still have to us

You seem dubious about the market size of this. > This gel does nothing for people who just want to hookup because of the risk of STDs. So you still have to use a condom anyway so why get the gel injection? Aside from the hookup crowd being the minority of the available market, this further reduces the probability of accidental pregnancy even for them. > So women will use BC in both phases because it's the path of least resistance Maybe, maybe not as sibling comments stress. Besides, this further decreases chances of pregnancy beyond female birth control alone. > I could see this working best as an alternative to vasectomy for a couple that is done having kids It's quite reversable (at least according to this article), so its market is reasonably far larger than that of a vasectomy.