249 citations
,
April 2002 in “The FASEB journal” Human skin can make serotonin and melatonin.
222 citations
,
January 2005 in “Endocrine journal” Melatonin is important for skin health and protection, and can be made by the skin or applied to it.
4 citations
,
July 1994 in “Clinics in Dermatology” Eosinophilia-myalgia syndrome, linked to contaminated L-tryptophan supplements, caused severe symptoms and some deaths, with long-term effects in survivors.
October 2004 in “European Neuropsychopharmacology” Impulsiveness is common across various psychiatric disorders and linked to many psychological symptoms.
31 citations
,
January 2011 in “Dermato-endocrinology” Melatonin protects skin against UV damage by regulating various cellular processes.