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[PubMed: 11686006] 777

Reurean-Pintilei, D

106 Melatonin not only regulates circadian rhythms like the sleep and wake cycle, it also reduces skin oxidative stress and inflammation, protects skin against solar radiation damage, and appears to promote wound healing and skin barrier health

L-tryptophan is prescribed in Canada for use in combination with antidepressants for patients with depressive disorders
