Aranaz Corral, InmaculadaAcosta Contreras, Florentina NiurisCivera Tejuca, María ConcepciónElorza Barroeta, BegoñaMingo, JavierCastro, CarolinaGandía, MaríaHeras Caballero, Ángeles María2024-02-052024-02-0520182073-436010.3390/polym10020213https://hdl.handle.net/20.500.14352/99141Marine resources are well recognized for their biologically active substances with great potential applications in the cosmeceutical industry. Among the different compounds with a marine origin, chitin and its deacetylated derivative—chitosan—are of great interest to the cosmeceutical industry due to their unique biological and technological properties. In this review, we explore the different functional roles of chitosan as a skin care and hair care ingredient, as an oral hygiene agent and as a carrier for active compounds, among others. The importance of the physico-chemical properties of the polymer in its use in cosmetics are particularly highlighted. Moreover, we analyse the market perspectives of this polymer and the presence in the market of chitosan-based products.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/journal articlehttps://doi.org/10.3390/polym10020213https://www.mdpi.com/2073-4360/10/2/213open accessChitinChitosanChitosan derivativeChitin derivativeOral careSkin careHear careOver-the-counter-drugPolymer carrierMarine resourcesCienciasCiencias Biomédicas23 Química24 Ciencias de la Vida2210 Química Física