Avaliação da qualidade de produtos cosméticos contendo ácido glicólico

Introduction: Glycolic acid is applied for the aesthetic and dermatological treatmentin anti-aging formulations, chemical exfoliators (peeling). Considering the great useof glycolic acid in cosmetic products and their applicability, it is become importantto carry out the quality control of cosmetic products containing glycolic acid, inorder to guarantee its quality as well safety to users. Aim: To evaluate the quality ofglycolic acid in cosmetic over the counter available in the national market. Materialsand methods: 8 samples of cosmetic products containing glycolic acid were evaluated.The following tests were performed: label analysis, organoleptic characteristicsof the products, pH determination, centrifuge test and glycolic acid assay (volumetricanalysis). Regarding the glycolic acid content, the 8 samples were approved,as they remained within the maximum limit established by Anvisa of 10% glycolicacid. Results: Regarding the pH evaluation, 4 samples presented values below theallowed, being that the use of products with pH below 3.5 may cause irritation anddamage skin. Already in the analysis of the labels from compounding formulationsamples, there was no recommendations and precautions of use. Conclusion: Thisway, the importance of quality control in glycolic acid containing products is evidentto provide safety and efficacy to users.