The hygienic agent (1) having an active substance for lowering the pH of the vagina and / or the external genitalia, where the active substance contains the crystalline lactic acid or its salts and on the surface layer (2) of the hygienic agent (1) used for the contact with the body is determined, and / or placed in the internal structure of the hygienic agent (1), characterized in that the lactic acid and / or its salt in the active ingredient in the form of monogestered monoglycerol monoester for the gradual release of lactic acid from the hygienic means (1) are.