I have been on Melanotan 2 for over 2 years and I am a huge fan. I have been having trouble finding a reputable supplier though until I came across Xxxx (I cant post their link but you can Google them). They're awesome and they even have a bunch of reviews on sites like Yelp and Insider pages. I highly recommend them if you want to try out Melanotan. Also, a lot of people are being very negative about this stuff bc its not FDA approved, however keep in mind 80% of the crap sold in GNC isn't FDA approved. All I know is this stuff works for me and Xxxx is a reliable place to get it. Good luck either way!