Preparation and research of cosmetic products based on domestic raw materials

Emulsions of vegetable oil/water were obtained and the effect of nonionic surfactants on their stability was studied. Triton X-100 and Twin-80 were used as nonionic surfactants. The “lifetime” of oil/water emulsions was determined at various phase ratios such as 7:3, 6:4, 5:5, 4:6, 3:7 and it was revealed that the most stable emulsion is at a ratio of 6:4, which was used for further research. The influence of surfactants on the stability of the selected emulsion is investigated. While the lifetime of the emulsion is about 45–50 min, the mentioned nonionic surfactants increased the lifetime of Twin-80 to 250–350 min, and Triton X-100 to 300–350 min. Concentrations of 10^-1 and 10^-2 mol/l of surfactants Twin-80, Triton X-100 showed very good results. On the basis of domestic raw materials, a hand cream was obtained with the replacement of the oil phase of the cosmetic emulsion with sheep fat. The resulted hand cream showed that it complies with the normative indicators of cosmetic creams.