Even if the problem of the end of the month sometimes outweighs that of the end of the world, consumer awareness of the issues raised by global warming, the depletion of our resources, pollution or contamination of our planet by toxic chemicals is only increasing. Preserving the environment may still seem like a wishful thinking, but it has also become a must. It primarily affects the industrial sector, including cosmetics. Because it is from it that we expect a sustainable and responsible commitment, at all levels of its production chain, from the sourcing of ingredients to manufacturing processes, including the purge of formulas, the reduction of packaging and of the carbon footprint during transport, not to mention the human factor and its fair dimension. This is a vast subject that CSR (Corporate Social Responsibility) that more and more consumers consider as a prerequisite and that brands still sometimes have a hard time understanding. This dossier reviews the various aspects of eco-responsibility in cosmetics, the concepts underlying it, the regulations and other labels that govern it, as well as the practical solutions to be implemented to move towards sustainability.