The invention relates to a skincare emulsion, 100 g of which contain: 5 to 6 g tannic acid, 2 to 3 g glycerol, 1 to 2 g 90% ethanol, 4 to 5 g oleyl oleate, 3 to 5 g cetyl stearyl alcohol E, with purified water and/or hydrosols making up the remainder. The invention also relates to the use of the skincare emulsion for the human or veterinary treatment of sun allergy, atopic dermatitis, psoriasis and/or cement dermatitis.