If you provide anyone else with peptides and something goes horribly wrong, you could be legally liable. Really, really unlikely, But in terms of more like liability in a relationship sense, given the odds of at least some adverse effects are actually pretty high maybe 50/50, I think it is worth making sure she has at least read a little bit independently about them and side effects in particular, as you do not want to be blamed if something happens - like she gets bad nausea and is puking for days, and you did not warn her such things can happen, and encourage her to do some reading, even just the basic drug company product literature for people starting the drug, as in an ideal world where the legit versions were not so extremely expensive, she would have had advice from her doctor giving the prescription at least, so she at least needs to know that much. Most likely you have already done this, but just in case.