Endocannabinoids are present in human hair follicles. CB1 agonists may reduce unwanted hair growth, while CB1 antagonists might counteract hair loss.
Link: Inhibition Of Human Hair Follicle Growth By Endo- And Exocannabinoids
Year: 2007
DOI: 10.1096/fj.06-7689com
Possibility of efficacy for cannabis in treatment of Skin Diseases (in general) according to the results found in this study.
ECS, anandamide, and THC