FIELD: food and cosmetic industry. SUBSTANCE: method involves preparing lactic acid product based on lactobacterium and/or bifidobacterium and addition natural biologically active additions based on polysaccharides followed by homogenization and cooling ready agent to storage temperature. Chitosan gel is used as natural biologically active polysaccharide-base additions at ratio of lactic acid product based on lactobacterium and/or bifidobacterium and chitosan gel = (1:9)-(35:1). For preparing food product food dye and/or preserving agent, for example, sucrose and/or fruit-berry additions are added additionally at the following ratio of components, wt.-%: lactic acid product based on lactobacterium and/or bifidobacterium 60-97; food dye and/or preserving agent, for example, sucrose and/or fruit-berry additions 0.01-5.0, and chitosan gel - the rest. For preparing cosmetic agent preserving agent and/or perfume are added additionally to product at the following ratio of components, wt.-%: lactic acid product based on lactobacterium and/or bifidobacterium 10-70; preserving agent and/or perfume 0.01-0.5, and chitosan gel - the rest. EFFECT: improved method of preparing, enhanced nutrient value and effectiveness, broadened region of using. 4 cl
