101 citations
,
January 1997 in “Journal of Investigative Dermatology Symposium Proceedings” Nerves and chemicals in the body can affect hair growth and loss.
46 citations
,
September 2016 in “Clinical, Cosmetic and Investigational Dermatology” Hormonal treatments are effective for severe or persistent acne and should be used with other acne therapies, considering potential side effects.
49 citations
,
August 2004 in “Anesthesiology” The document concludes that more research is needed to understand how to treat muscle pain with drugs.
375 citations
,
August 2006 in “Journal of Investigative Dermatology” Stress can worsen skin and hair conditions by affecting the skin's immune response and hormone levels.
41 citations
,
July 2015 in “Current Drug Discovery Technologies” Some plants may help with hair growth and have fewer side effects than synthetic drugs, but more research is needed to confirm their effectiveness.