Sounds like a good way to save someone from severe alcohol poisoning. Not sure I see much of a point otherwise, tbh.
So this gel seems like drinking less booze with extra steps. I do see a use for women and undercover cops though. Or to make people think you are drunker than you are.
But if their way of partying is to get drunk, this gel will prevent them from partying, since getting drunk requires the alcohol to get into your bloodstream.