The aim of this work is to use a natural substance recovered from pistachio galls as anticorrosion agent, another opportunity to exploit natural resources. The present study investigates the inhibiting effect of extracts from pistachio galls of Atlas. Electrochemical methods associated with the infrared Fourier transform spectroscopy are used. The results show that this substance can be used as an ingredient for the design of a new family of greener and less costly inhibitors. The Electrochemical study showed that pistachio galls act in electrostatics interaction with the steel surface, and thus by physical adsorption. The analysis FTIR spectroscopy confirms this result.