Situmorang, E.M.B., Alfifto, A., Tarigan, E.D.S., Putra, I. and Nasution, A.M.U. 2026. The Influence of Brand Ambassador and Brand Image on Skintific Skincare Purchase Decisions in Gen Z Management Study Program, University of Sumatera Utara. Proceeding of International Conference Technology, Economics, and Social Science. 1, 1 (Jan. 2026), 213-219.