This post is over a year old, but I'm replying anyway. I was using minoxidil for 11 months. Didn't really notice my skin changing until people started asking me why I had a gray tone to my face. Then I started noticing just how bad my skin got. Dark circles from hell, looking like a zombie. My skin darkened and got dull, no longer has that "glow" to it. I stopped the minox, started taking collagen peptides, biotin, vitamin C serum on my face along with retinol....very slight improvement to the dark circles, but I'm sure it's going to take quite a long time to reverse the damage that it did to my skin.