Wouldn't there be side effects - like facial hair???
That's what some women are concernd about (only a possible side effect, not that much research done yet.) It works though.Don't know what HP means about slipping her a googly. If he means giving her some without her knowledge I think that's assault. Wouldn't be that easy to 'slip' on someone anyway as it comes in a gel to be rubbed on to the body.
And Male Pattern Baldness. And a deeper voice.
And a clit like a small cock.
As far as I know, if a lady has hormone problems (menopause etc) then testosterone is already part of certain HRT combinations.