Using Melanotan and Getting Restylane Injection?

I would also address the dark circles with topical Melarase cream and MelaPeels to improve skin quality under the eyes. 

There isn't any reason why you shouldn't be able to have any dermal filler injections while using a self-tanning product. Be sure and consult with a well-trained and experienced injector for best results!

     As far as is known, there is no interaction between melanotan-1 and Restylane, but no studies have been done.  If you have dark eye circles, and the melanotan-1 variation that you purchased is effective, this may worsen the pigmentation in that area.  However, if you have used it for any period of time, you would know better, because you can readily visually assess your body's response.