# Helfrich YR, Kang S, Hamilton TA, Voorhees JJ: Topical becocalcidiol for the treatment of psoriasis vulgaris: a randomized, placebo-controlled, double-blind, multicentre study. Br J Dermatol. 2007 Aug;157(2):369-74. Epub 2007 Jun 26. "Pubmed":http://www.ncbi.nlm.nih.gov/pubmed/17596167 (en)
The mechanism of action of becocalcidiol in the treatment of psoriasis is accounted for by an antiproliferative activity for keratinocytes and the stimulation of epidermal cell differentiation. (en)