People are becoming increasingly aware of the environmental and social implications of their consumption. To make ecologically responsible purchases consumers require environmentally relevant product information. Therefore, marketers and firms are increasingly using green marketing tools to integrate detailed environmental information into their offerings, such as eco-labels and green advertising. This study aims to test the direct impact of eco-labels and green advertising on green purchase intention and examine the mediating role of green brand equity dimensions. Data were gathered from a sample of 870 consumers who purchased milk products in Vietnam. The results reveal that eco-labels and green advertising positively and significantly influence green purchase intention directly and via adaptive green brand equity dimensions as a mediating influence mechanism. The study provides essential insights for firms and marketers investigating issues related to green purchase intention and green brand equity, thereby identifying the role of eco-labels, and green advertising.