Iirc nicotine binds to the same receptors as oral estrogen. So I guess it's just nicotine and possibly only if you're doing pills? But I've never smoked so I've never delved too deep into it so I recommend you do a more thorough investigation.
That is Camões, the scrolls are the manuscripts of his epic, Os Lusíadas.
Iirc nicotine binds to the same receptors as oral estrogen. So I guess it's just nicotine and possibly only if you're doing pills? But I've never smoked so I've never delved too deep into it so I recommend you do a more thorough investigation.