306 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS potential of personal washing products. The test is reproducible across a range of local seasonal variations. Product testing, as performed in the flex wash test, allows natural lather development from the bar and closely mimics product concentrations during home usage. Subject compliance is excellent since use of the flex area allows the panelist to follow a normal cosmetic and skin care regimen on the face and hands. The method is useful as a screening test when evaluating mild surfactants and other mildness agents, with directionality evident by the third day of the test. While the test has been de- signed to discriminate small differences in irritation potential, it lacks the ability to separate products based upon dryness. ACKNOWLEDGMENTS The authors wish to thank Ms Joan Barrows and Ms Dolores Borowski for their tech- nical expertise, and Dr. Gary Grove for his consultation in the statistical analysis of the data. REFERENCES (1) S. H. Peck, J. Morse, T. Cornbleet, E. Mandel, and I. Kantor, Soap--Neutral vs alkaline, Skin, 1, 261 (1962). (2) P. Frosch and A.M. Kligman, The soap chamber test--A new method for assessing the irritancy of soaps,J. Am. Acad. Dermatol., 1, 35-41 (1979). (3) J. D. Justice, J. J. Travers, and L. J. Vinson, Testing detergent mildness, Soap Chem. Specialties, 37(8), 53-56 (1961). (4) P. J. Frosch, "Irritancy of Soaps and Detergent Bars," in Principles of Cosmetics for the Dermatologist, P. Frosch and S. N. Horwitz, Eds. (C. V. Mosby Co., St. Louis, 1982), pp. 5-12. (5) M. F. Lukacovic, F. E. Dunlap, S. E. Michaels, M. O. Visscher, and D. D. Watson, Forearm wash test to evaluate the clinical mildness of cleansing products, J. Soc. Cosmet. Chem., 39, 355-366 (1988). (6) S. W. Babulak, L. D. Rhein, D. D. Scala, F. A. Simion, and G. L. Grove, Quantitation of ery- thema in a soap chamber test using the Minolta Chroma (Reflectance) Meter: Comparison of instru- mental results with visual assessments, J. Soc. Cosmet. Chem., 37, 475-479 (1986). (7) G. L. Grove, personal communication.

307 Erratum G. Sauermann, U. Hoppe, M.-C. Leneveu, M. Rockl, O. Stelling, and K.-P. Wittern. A simple method to avoid sandiness and enhance deodorant efficacy of soaps containing TCC. Journal of the Society of Cosmetic Chemists, 40, 75 (1989). In the March/April 1989 issue K.-P. Wittern's name was omitted as one of the authors.