Endocrine disruptors are substances likely to interact with the endocrine system, causing an impact on health, in particular the development of cancers or human reproductive disorders. They can be found in many everyday consumer goods, including cosmetics. They raise much concern and give rise to multiple reactions, both from the general public and political and health authorities. All this implies many uncertainties as regards a number of ingredients widely used in cosmetics formulas. This dossier provides an update on what should be known about endocrine disruptors.