[Clinical trial of a topical preparation containing urea, sunflower oil, evening primrose oil, wheat germ oil and sodium pyruvate, in several hyperkeratotic skin conditions].

A topical clinical trial with preparations containing urea and sodium pyruvate has been made. It was used for diverse hyperkeratotic skin conditions (psoriasis, xerosis, pityriasis rubra pilaris, stuccokeratosis, seborrheic dermatitis, stasis dermatitis, pityriasis lichenoides chronica). A month later a clinical improvement was evident in all cases except in pityriasis lichenoides.