In recent years, more and more often we hear expressions such as "0 impact products", "eco-sustainability", "green approach" or "respectful to the environment" and someone wonders if behind these terms there is a temporary fashion, a real environmentalist approach or if there is rather an economic interest that takes advantage of the greater sensitivity developed by many people towards the environment.This article does not try to answer this question, but the many case studies evaluated in the synthesis of pharmaceutical active ingredients support the fact that, if there is the right will in the management, it is possible to reconcile an eco-friendly approach with the company's economic interests: when this synergy is realized, the results are very pos. and noticeable.