2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/186947We calculate the standard model effective potential to two loops using minimal subtraction, and use the result to deduce the two-loop beta-functions for the scalar mass and quartic self-interaction.17 pages, Plain TeX. The published version of this paper and unfortunately also the erratum contain a number of typographical errors and omissions. Version (v2) corrects an error in Eq. 6.17. We thank Peter Arnold, Steve Martin and Mingxing Luo for their assistance, Nucl.Phys. B387 (1992) 373-390; erratum ibid B504 (1997) 551-552High Energy Physics - Phenomenologytext