Abstract: A mixture obtainable by a process comprising the following steps: a) adding a culture comprising sprouted rye grains and water to a rye fine or coarse meal and subjecting the mixture to a process of heating to 30-34° C. within 3 to 5 hours, a strong maltose formation being initiated from enzymatic reactions; b) followed by a further addition of rye fine or coarse meal, water and a bacteriological inoculum from the group of heterofermentative lactic-acid bacteria; c) acidifying the mixture until the metabolic activity of the microorganisms ceases, and optionally pasteurizing at 90-95° C.; d) separating the mixture by centrifugation into a solution and a precipitate, after which the solution is optionally filtered at least once.

Abstract: A method for the preparation of a curative and care agent for the skin on the basis of an acidified leaven, wherein: 1.1 a natural enzymatic starter and water are added to a rye fine or coarse meal, the mixture is subjected to a process of heating to 65-75° C. within 3 to 5 hours, a strong maltose formation being initiated from enzymatic reactions; 1.2 a further addition of rye fine or coarse meal, water and a bacteriological inoculum from the group of heterofermentative lactic-acid bacteria is made; and 1.3 the mixture is acidified until the metabolic activity of the microorganisms ceases. The invention further relates to a curative and care agent for the skin obtainable by said method, and to the use of said skin and care agent.