Performance Evaluation of Aloe Vera-Based Moisturizers with Gelatin, Polyacrylic Acid (PAA), and Xanthan Gum Combinations: Analysis of Moisture, pH, and Viscosity

Abstract

Aloe vera-based moisturizer formulations incorporating gelatin, xanthan gum, and carbomer aim to optimize moisture retention, viscosity, and pH stability. This study analyzed the physicochemical characteristics of these ingredient combinations through testing of pH, viscosity, and skin moisture after moisturizer application. The results showed that all combinations had a stable pH in the range of 5.05 to 5.15, which corresponds to the natural pH of the skin. The formulation with xanthan gum gave the highest viscosity, while the gelatin combination produced the lowest viscosity, which allowed faster penetration but shorter hydration effect. The best formulation in moisture retention was obtained from the combination of Aloe vera with carbomer, which provided a balance between pH stability, viscosity and hydration capacity. This study confirms that the combination of ingredients is effective in creating a stable moisturizer suitable for cosmetic applications.