In the present work, the nutritional value of high-fat dairy product - melted butter, which was produced in Ukraine, was characterised. It was shown that, along with the traditional fatty acid compositions, this product had an insufficient concentration of biologically active substances that contributes to storage stability, expands organoleptic characteristics, and prevents main spoilage processes such as rancidity and tallowiness. The appropriate biologically active colouring attractants for improvement of organoleptic and biological properties of melted butter were observed. The formulations of new melted butter-based products were tested by using two individual carotenoids (carotene and xanthophyll); namely chlorophyll and chlorophyll-carotenoid complex additives in a concentration of 3 - 7%. The antioxidant activity of the samples, which was determined volumetrically by the intensity of initiated oxidation of isopropyl benzene, made it possible to establish an increase (4.40 - 6.52 times the period of induction) of oxidation for melted butter variants, with colorants. The study of organoleptic, physico-chemical, and microbiological indicators confirmed the biological stability and safety of the developed high-fat dairy products, thus fulfilling the body requirement for carotenoids, magnesium, and several other biologically active compounds. According to the results, the guaranteed shelf life of the developed melted butter types with colouring attractants of carotenoid and chlorophyll, which met the safety requirements, could be prolonged by 31 - 48%. In conclusion, the present work improved the technical and economic indicators, and confirmed the feasibility of their production.

The possibility of developing a cosmetic product with antipigmentation properties has been considered. The cream is based on extracts, selected by monitoring, from plant components spread in Ukraine, able to inhibit tyrosinase and thus impart antipigmentation properties to the product. As active components expanding the range of the product’s cosmetic properties, ingredients were selected that strengthen the skin matrix and saturate it with essential substances. To enhance the effectiveness of the biologically active constituents of the product, liquid crystals based on cholesterics as modern systems of transdermal delivery of active components (0.1%) were included in its composition. For the cosmetic product, it has been suggested to use the following thermotropic cholesteric composition: cholesteryl nonanoate – 45%, cholesteryl pentanoate – 25%, cholesteryl-4-nonylbutanedioate – 30%. According to the complex of the organoleptic, physico-chemical, biochemical, and microbiological quality parameters of the new product after its manufacture and storage during three months, it has been established that it complies with the general sanitary and hygienic requirements to perfumes and cosmetics of the 3rd group. Biotesting on the testing cultures Allium cepa L. and Saccharomyces cerevisiae has proved the complete integral safety and growth potentiation of both testing cultures by 9.6–19.3% to the control, even in the presence of a preservative. This is an evidence of the safety, biological activity, and advisability of the developed cosmetic product with antipigmentation properties, containing cholesteric liquid crystals. The cosmetic product, based on the formulation developed, has been tested on female volunteers. Its effectiveness has been established and a simultaneous increase in the face skin humidity has been proved instrumentally.