Sustainability products became a “new normal” for the nowadays society. Different aspects of government, economical and socio-cultural issues affect the sustainability certificate perception by final consumers. The aim of this paper is to consider findings from marketing research and analyze the outputs. The survey monitored green behavior by the Czech consumers in time. The reason and motivation of this analysis was the academic interest in Czech buying behavior modification, caused by pandemic COVID-19. Sustainability products contribute different specifics related to the way of production, processing, and selling. All mentioned aspects reflect the final consumer buying decision which can fluctuate under the worldwide and local impacts.