It is known that in Chile the marketing of medicinal plants is very informal; quality control is poor and sometimes nonexistent. The lack of knowledge and education on the proper use of medicinal plants that exist in local population makes this a serious problem. The aim of the present study was to evaluate a group of commonly used medicinal plants in the city of Concepcion, (Chile). We carried out 120 survey to establish the main characteristics of populations that consumes them. With the results of the surveys, the species most used, brands and local outlets were identified. Further, according to official monographs and other previously published works, we established attributes regarding to macroscopic characteristics, physic-organoleptic properties, microscopic elements and phytochemical reactions. Quantitative comparisons were carried out considering purity assays, and chemical markers analysis. As noted, quality variations were associated to the type; brand and local outlets. The best sample qualities were found in herboriesteries compared with those obtained from supermarkets and pharmaceutical companies. It suggests establishing quality standards for the marketing of medicinal plants in their natural state and improves consumer information at the time of dispensing.