avaliação Físico-Química de sabonete líquido facial formulado a partir do pó da casca de ziziphus joazeiro e do extrato de camellia sinensis, destinado a peles oleosas e acneicas

Abstract

Acne vulgaris is a common inflammatory condition in adolescents and adults, frequently associated with excessive skin oiliness, characterized by sebum accumulation and pore obstruction. Given this condition, different therapeutic approaches have been used to help control oiliness and reduce the inflammatory process, with a growing interest in the use of plants in traditional medicine and cosmetics due to the presence of bioactive compounds with therapeutic properties for the skin. This study aimed to develop a liquid facial soap based on plant-based raw materials of juazeiro (Ziziphus joazeiro Mart.) and green tea (Camellia sinensis), intended for oily and acne-prone skin, evaluating its stability and physicochemical characteristics. To this end, the cosmetic formulation was designed, organoleptic characterization was performed, and physicochemical parameters and stability were evaluated through laboratory analyses. In this process, the tree bark was dried at room temperature until a constant weight was reached and subsequently macerated to obtain the extract, along with commercial green tea extract. Both were incorporated into a cosmetic base composed of surfactants, a thickening agent, and a humectant. The results demonstrated the stability of the formulation, without significant alterations in the evaluated parameters, presenting a pH compatible with the skin, good foam formation, and a homogeneous appearance, showing potential for the care and cleansing of oily and acne-prone skin. It is concluded that the use of plant-based raw materials represents a natural, effective, and sustainable alternative for this condition.