Quote Originally Posted by MuscleInk View Post

I haven't observed that effect - but I've only dosed three times and usually about 3 weeks apart. Any compound that mimicks or stimulates MSH production could cause a change in pigmentation (as you are well aware). There is also a correlation between estrogens, MSH and hyperpigmentation which has left me wondering if anabolic users may see some hyperpigmentation if E levels weren't kept in check.

I've read conflicting reports about whether Bremelanotide/PT-141 will cause changes in pigmentation (and that was its original intended application) or if its been modified solely for libido enhancing effects.
I thought it was a known side effect of pt-141 but now marcus has me questioning it. I'm going to do some more research and post back.