Modeling of semisolid hydrophobic basis using natural substances and quality analysis

In many of natural cosmetic products only active ingredients are natural therefore it is important to make basis of cosmetic product using only natural substances Purpose of work: To make semisolid hydrophobic basis, designed for lip care using only natural substances and evaluate its quality. Methods: All systems were made by melting. Their quality was assessed: 1. Measurement of dynamic viscosity. Rigidity and stability of systems are evaluated. 2. Measurement of pH value. 3. Measurement of rheological characteristics. Structure stability and lubrication are evaluated. 4. Measurement of microstructure. Homogeneity is evaluated. 5. Test of stability. Stability was studied 12 months in natural conditions. 6. Test of organoleptic characteristics. Color, odor, consistence, lubrication and fatness were evaluated. Results: It has been discovered that the basis of beeswax and olive oil did not form stable structure, therefore were added – cocoa butter, cholesterol, white Vaseline and hard paraffin, which improved organoleptic characteristics and form semisolid system. Compositions for optimization were formed by orthogonal statistical plan. The tests of rheological characteristics and microstructure were made for these compositions. It has been found that all the systems are homogeneous. Beeswax influences the decrease of flow behavior index, and the increase of consistency coefficient and yield stress. With increase of temperature, plasticity of preparations is decreasing Test of organoleptic characteristics has shown that the composition VC6 has the best features. Conclusions: 1. After scientific literature study, beeswax and olive oil were chosen as main ingredients for modeling of semisolid hydrophobic system as a material, having protective, nutritious and moisturizing features. 2. It was found that stable semisolid hydrophobic system with acceptable organoleptic features is made, when filler of matrix is made of beeswax, white vaseline and hard paraffin combination 3. As a result of application of orthogonal statistical plan and alalysis of the results of rheological and orgonoleptic characteristics, the following composition of semisolid hydrophobic basis was chosen: Beeswax 5,828 White vaseline 5,0 Hard paraffin 5,0 Cocoa butter 10, 0 Cholesterol 3,0 Olive oil 70,0