Nope — the approved one is afamelanotide. It's related, but it isn't the same thing. Just be certain your mt1 dose is correct, since you don't want to end up too dark.
Honestly, just pick RT. It's worth it. There's a ton of research behind RT, really thorough, and plenty of human data too. On top of that, RT seems to do a good job of helping you keep muscle while you're dropping weight.