In vitro evaluation of the cytotoxicity and eye irritation potential of preservatives widely used in cosmetics



Título del documento: In vitro evaluation of the cytotoxicity and eye irritation potential of preservatives widely used in cosmetics
Revista: Brazilian Journal of Pharmaceutical Sciences
Base de datos: PERIÓDICA
Número de sistema: 000451778
ISSN: 1984-8250
Autors: 1
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Institucions: 1Universidade Estadual Paulista "Julio de Mesquita Filho", Escola de Ciencias Farmaceuticas, Araraquara, Sao Paulo. Brasil
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Volum: 58
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés The consumption of cosmetics has been increasing every year and is expected to reach $675 billion by 2020 at an estimated growth rate of 6.4% per year. Exposure to skin irritants is the major cause of non-immunological inflammation of the skin. Therefore, the safety evaluation of cosmetic preservatives should be increased. Thus, the present work aimed to evaluate the cytotoxicity as the viability endpoint and the eye irritation potential of preservatives used in cosmetics. Cytotoxicity assays were performed using MTT and NRU in human keratinocytes (HaCaT), human dermal fibroblasts, adult (HDFa), and human hepatoma cells (HepG2). The eye irritation potential was evaluated using the Hen’s Egg Test-chorioallantoic membrane (HET-CAM). The evaluated preservatives were methylparaben (MP), propylparaben (PP), phenoxyethanol (PE), and a mixture of methylchloroisothiazolinone and methylisothiazolinone (CMI/MI). All preservatives showed cytotoxic potential within the permitted concentrations for use in cosmetic products. In the HET-CAM test, PE and CMI/MI, MP, and PP were classified as severe, moderate, and poor irritants, respectively. Our results indicate that proper safety evaluations are required to ensure the beneficial properties of preservatives on cosmetic products without exceeding exposure levels that would result in adverse health effects for consumers
Disciplines Química
Paraules clau: Química farmacéutica,
Cosméticos,
Conservadores,
Citotoxicidad,
Irritación ocular
Keyword: Medicinal chemistry,
Cosmetics,
Preservatives,
Cytotoxicity,
Ocular irritation
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