This study aims to review the correlation of environmental knowledge, eco-label, and perceived quality of green awareness customers with environmentally friendly products. Research method is based on a survey on 100 customers of a supermarket who are familiar with environmentally friendly products. The analysis technique conducted uses linear regression with smart tools of SPSS for testing the hypotheses of the paper. The research finding demonstrates that environmental knowledge, eco-label, and perceived quality had positive correlations with green awareness customers. Out of all the factors that influence green awareness, eco-label of the customer maintains the most determining impact on green awareness improvement. Research finding emphasizes that antecedent of green awareness includes environmental knowledge, eco-label, and perceived quality. The results are useful information for stakeholders since they may use green marketing strategy and government in decision making to the green products.