11.15.05
Patent No. US 6,737,068 B2: A researcher for Playtex Products, Inc., Westport, CT, patented a liquid wipe or towelette consisting of an anti-irritant agent (either analgesic, antipruitic, astringent, hydrocortisone preparation and/or keratolytic), citric acid and at least one preservative of sodium hydroxymethylglycinate.