Formulation of a solid shampoo with Oenocarpus bataua oil, cocoa butter, and Cinchona officinalis

Abstract

The study addresses the problem of the need to develop a sustainable alternative to conventional shampoos that use large amounts of water and plastic contributing to environmental pollution. The objective was to formulate a solid shampoo using Oenocarpus bataua oil, cocoa butter and Cinchona officinalis, evaluating its functional and physicochemical properties to identify the most efficient and environmentally friendly formulation. To do this, an experimental mixture design was used by adjusting the concentrations of cinchona powder and ungurahua oil and aspects such as foam formation, pH, electrical conductivity, dirt dispersion and antioxidant activity were evaluated. As a result, formulation 5 was the most outstanding, showing the highest foam formation capacity (10,75 cm) and stability (10,6 cm), an adequate pH of 6,45 and a good balance in electrical conductivity (594 µS/cm) and dirt dispersion. Although other formulations presented a higher antioxidant activity (up to 517 mg eq. TROLOX/L), formulation 5 achieved a more efficient balance between all the evaluated properties, meeting the stated objectives of efficacy and sustainability.