April 2016 in “Journal of Investigative Dermatology” Using a stimulating cream shampoo before applying Minoxidil helps it penetrate hair follicles better, enhancing its hair growth-promoting effect.
April 2016 in “Journal of Investigative Dermatology” Microneedle arrays deliver botulinum toxin effectively for sweat suppression, similar to injections.
April 2016 in “Journal of Investigative Dermatology” Phenylephrine may help prevent hair loss from pulling on the hair roots.
April 2016 in “Journal of Investigative Dermatology” 
146 citations,
January 2004 in “Hormones” Human skin acts like a hormone-producing organ, making and managing various hormones important for skin and hair health.
63 citations,
May 2009 in “Dermato-endocrinology” Increased FGFR2b signaling, influenced by androgens, plays a role in causing acne.
58 citations,
March 2011 in “Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere/Pflügers Archiv” Hormones and signaling pathways control sebaceous gland function and could help treat acne.