The Mainz profile algorithm (MAPA) derives vertical profiles of aerosol extinction and trace gas concentrations from MAX-DOAS measurements of slant column densities under multiple elevation angles. This paper presents (a) a detailed description of the MAPA (v0. 98). (b) results for the CINDI-2 campaign. https://cosmeticssquadets.shop/product-category/eau-de-parfum/