164 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Society of Cosmetic Chemists Award Sponsored by International Flavors and Fragrances, Inc. The 1970 Society of Cosmetic Chemists Award sponsored by Interna- tional Flavors and Fragrances, Inc., has been presented to Dr. Francis N. Marzulli of the Food and Drug Administration and to Dr. Howard I. Maibach of the University of California, San Francisco Medical Center, for their paper "Perfume Phototoxicity." The award, consisting of a scroll and a $1000 honorarium, is presented annually to the author or authors of the most meritorious paper pub- lished in the Jotmr•^•. oF TI-IF. Soc•F.•-¾ oF CosMF. vm CHEM•SVS, USA. Formal presentation was made by the Society's President, Mr. Morris Root, at the December 13th luncheon session during the Society's annual meeting in New York City. LeJt to right: Dr. Howard I. Maibach, Dr. Francis N. Marzulli, and Mr. M,orris P•oot, Presi- dent of the Society

J. Soc. Cosmet. Chern., 25, 165-170 (March 3, 1972) The Kinetics of Dye Rinse from Bleached Hair MICHAEL Y. M. WONG, Ph.D.* Presented May 24-25, 1971, Seminar, Washington, D.C. Synopsis--Experimental data were obtained on the KINETICS of DYE RINSE from BLEACHED HAIR. It was found that dyes of different molecular sizes had significantly different behavior towards the effect of hair bleaching. INTRODUCTION There is still considerable uncertainty regarding the chemistry of hair bleaching however, it is generally agreed that oxidative bleaching has several side effects (1-3): changing the chemical constituents of the hair, opening the highly crosslinked structure inside the hair fiber, and possibly degrading the cuticle layer on the surface. These modifications conceivably alter the dyeing properties (4, 5) of hair, in particular the kinetics of dye rinse. Aside from the obvious practical implication, re- sults on the kinetics of dye rinse from bleached hair can be of consider- able theoretical interest, at least qualitatively. This study has been limited to rinse-out kinetics of direct dyes. How- ever, the ionic character and molecular sizes of the dyes have been con- sidered. * Clairol Research Laboratory, 2 Blachley Road, Stamford, Conn. 06902. 165