I want to use melanotan2 peptide. I am a pretty fair skinned person, how many vials will i need to buy? also people say it makes them puke and horny, are those sides common? my tanning salon shut down for good and they stole my money since I had paid for months upfront so I don't feel like going to a new one that will pull the same scam on me and keep billing me so want to use this instead