- Reaction score
- 1,253
I think the headache would it be reducing 5-AR in the head, thus possibly a slight neurosteroid effect. Just my guessThe headache is definitely there. Dark circles I'm not 100% sure about. Can be stress and loss of sleep as well. I just noticed it and thought it might be the Zix causing it. It does drop down my face sense I always forgetting to tilt my head when I apply it