1. Field of the Invention
This invention is in the field of topical compositions for the treatment of seborrheic keratosis and includes an alkali metal or ammonium phenate, a monohydric alcohol solvent, a polyhydric alcohol humectant which absorbs moisture from the air to initiate the exfoliation reaction, and a gelling agent which improves the adherence of the composition to the skin.
2. Description of the Prior Art
In U.S. Pat. No. 3,821,370, I described a topical composition for use in the treatment of various skin conditions, including seborrheic keratosis. This patent disclosed a composition containing from 20 to 60 parts of an inhibited phenol calculated as potassium phenolate, 1 part of a salicylate calculated as sodium salicylate, 5 parts of resorcinol, and 4 parts of a zinc compound calculated as zinc sulfate.
In a later filed application, now U.S. Pat. No. 3,949,072, I described a composition containing an inhibited phenol, a salicylate, a zinc compound and resorcinol, all dissolved in a nonaqueous solvent which included a hydrophilic non-toxic lower aliphatic alcohol. The advantage of the composition described in this later patent was the use of significantly lower amounts of the phenolate than in the previous patent.
USPTO Backgrounds
USPTO Backgrounds