Bioactive Condition (1) for topical use in cosmetic and/or medical treatmentwith a water-soluble, spongy hydrocolloid matrix (10), consisting of a foamed aqueous solution frozen to an open pore structure,where the solution is a hydrocolloid polymer material in a concentration of 1 to 10 W%, in particular 2 to 5 W%and contains at least one aldehyde group networking medium in a concentration of 0001 to 0,02 CW%, in particular 0005 to 0,01 CW% for matrix formation.
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