Óleo ozonizado de Euterpe oleracea MART. como insumo cosmético para os cuidados labiais: caracterização e atividades biológicas

Abstract

The cosmetics market is a constantly expanding industry that invests heavily in technology and innovative raw materials. Consumers of these products are increasingly concerned about health and sustainability. As a result, trends such as clean beauty had merged, emphasizing the consumption of products with natural, organic, or vegan formulations to reduce or eliminate potentially harmful substances. Vegetable oils have gained popularity for therapeutic and cosmetic purposes due to their antioxidant, emollient, moisturizing, and repairing properties. In line with the concept of clean beauty, the ozonation process of certain oils has emerged as a strategy to provide antiseptic, anti-inflammatory, and healing functions through the formation of by-products from ozonolysis. This study investigates the properties of ozonated Euterpe oleracea (açaí) oil incorporated into a lip balm formulation with moisturizing properties. The ozonation process of the oil was carried out using a medical ozone generator. The physicochemical characteristics of the refined and ozonated oils were analyzed, and their biological activities were evaluated. The ozonated oil was then incorporated into a lip balm formulation for lip care. The results indicated that ozonation caused changes in the structure of the açaí oil, as evidenced by the increase in peroxide and acidity indexes and the decrease in the iodine index. These changes were further confirmed through nuclear magnetic resonance (NMR) analysis, which revealed the breaking of unsaturated bonds in the oil. The refined oil exhibited increases in density and viscosity. However, no significant antimicrobial or antioxidant activity was observed. In terms of the lip balm formulation, the characterization tests demonstrated that the sample had an appropriate pH, was resistant to thermal stress, and exhibited melting and drop points within the standard range. It also showed good spreadability and greater occlusiveness compared to the reference moisturizer. These results indicate that the test formulation possesses favorable characteristics, and its moisturizing potential is enhanced through the action of the ozonated oil.