This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables. A new item has been added to the already overflowing stock on the cosmetic counter. With its arrival numerous reports of hypersensitivity may be anticipated. Liquid lip rouge is a red liquid, somewhat lighter in consistency than nail polish. Its justification for existence is based on the facts that it will not smear and that one application usually suffices for the day. The following report is of a severe dermatitis resulting from the use of a liquid rouge. REPORT OF A CASE S. R., a white girl aged 19, had been using liquid lip rouge for the past two weeks. On July 19, 1941 she noticed slight swelling of both lips. This was accompanied by burning and itching. Later that same day small white blisters appeared on the lips. She discontinued the application of the lip rouge. The following day redness and swelling developed over the entire face. Blisters developed