Zinc deficiency is a common finding in patients with atopic dermatitis (eczema). This study investigated whether supplementing with zinc would have any impact on the condition. After 8 weeks of zinc supplementation in patients with low zinc levels, hair zinc levels increased significantly, along with improvements in EASI scores, TEWL, and visual analogue scales for pruritus.

Kim JE, Yoo SR, Jeong MG, Ko JY, Ro YS. Hair zinc levels and the efficacy of oral zinc supplementation in patients with atopic dermatitis. Acta Derm Venereol. 2014 Sep;94(5):558-62. PMID: 24473704.