]. Cosmet. Sci., 55, 387-391 Quly/August 2004) Abstracts Journal of the Society of Cosmetic Chemists Japan Vol. 37, No. 3, 2003* Skin Surface Friction and Sensory Evaluation Mariko Egawa, Tetsuji Hirao, Motoji Takahashi Shiseido Life Science Research Center Sensory properties are very important in efficacy tests of cosmetic products. Several devices for the measurement of tactile sensory properties have been developed in recent years, and we have studied skin surface friction and examined the correlation with skin physiological parameters. The purpose of this study was to determine the relationship between skin frictional parameters and sensory evaluation after application of cosmetics. A KES-SE Frictional Anal yz er (Kato Tech Co. Ltd., Japan), a commercial device for the measurement of surface instrumental analysis may be useful to predict the tactile impression of cosmetics on human skin. Efficiency Characterization Index for Constituents in External Preparations on Wound Healing Hajime Shimomura, Kazuo Izawa, Hiroshi Tachi, Toshiaki Sugiyama Department of Research and Development, Mikimoto Pharmaceutical Co., Ltd. Department of Chemistry and Biochemistry, Suzuka National College of Technology frictional characteristics, was used in this study. An arm The healing effect of local preparations containing bovine holder was added to this device for measurement on the blood or hydrocortisone was examined on open wound of human forearm. Frictional coefficient (1vfiU) and its mean rat skin. The wounds were produced by application of deviation (MMD) were used as parameters of surface lOmm-diameter-punch. The wound areas were copied to friction. The moisture content in the stratum comeum was transparent film and were measured with an image analyzer measured with a Corneometer CM825. MIU and MMD every day. From the results of our experiment, it was were measured immediately, and at 1.5, 4, 5.5 and 7 h after demonstrated that the rate of wound healing became application of 9 kinds of moisturizing emulsion with smaller with decreasing wound area. And in this study, the different textures, and the sensory evaluation was made by cell division rate h was found to be an indicative parameter 6 experts and 149 consumers at almost the same time as the of wound healing rate. frictional measurement. In the comparison of sensory score with frictional properties, MIU showed a high positive correlation coefficient with hydrate, oily and sticky, while inversely with slippery and dry. It was also shown that oily (aburapposa in Japanese) and hydrate (shittori in Japanese) properties of cosmetics could be examined separately using MIU and MMD. In addition, the changing pattern of MIU with time after application of cosmetics to skin was correlated with fit (najimi in Japanese) assessment. This Usefulness and Technology of Foundation Kunihiko Mohri POLA Chemical Industries, Inc. The advance of foundation makeup technology has made remarkable progress these ten years. The study of formulation, utility or makeup effect have been reported not * These abstracts appear as they were originally published. They have not been edited by the Journal of Cosmetic Science. 387

388 JOURNAL OF COSMETIC SCIENCE only in Japan but also in IFSCC and many studies have received prizes. I would like to describe the advance of foundation makeup technology by explaining some research which has been reported. Mechanism and Regulation of Body Mal odor Generation - Development of a Novel Deodorant Powder and Application to Antiperspirants- Masatsugu Miyazaki, Kenichiro Fujihira, Megumi Sadaie, Naoki Nishikawa, Ryo Kon, Keikichi Sugiyama acid dyes generally can not be removed easily. There is no established method for removing stains caused by acid dyes completely and easily. Nishizawa and his colleagues reported the development of acid dyes that do not easily adhere to the skin. However, there is still a great need for new dye removal methods. Therefore, we evaluated solvents and activators of removers by assessing skin permeability and elution from the skin, in order to develop a remover that can easily and safely remove acidic stains from skin. Beauty-Care Research Laboratories, Analytical Research Mechanism and Regulation of Body Malodor Generation Center, Lion Corporation -Effect of Iron on Axillary Malodor and of Anti - Oxidant It is well known that short-chain fatty acids, amines and steroids generated by microbial metabolism are the principal compounds responsible for body malodor. We newly identified vinyl ketones ( 1-octen-3-one, cis-1,5-octadien-3-one) in body odor and found those ketones are also key compounds in axillary malodor. The purpose of this study was to develop a high performance powder, which has quenching efficacy not only for the short-chain fatty acids and amines, but also vinyl ketones. By investigating various powders known to have quenching efficacy, we finally developed a highly porous silica bead containing magnesium oxide. We found that the superior deodorant effect performed by this powder was the result of the multiple effects of both an excellent physical adsorption capability due to its high porosity and a specific adsorption of vinyl ketones to the magnesium in the powder. An antiperspirant formulation containing both the powder and Morus alba extract showed good efficacy as a deodorant. Development of New Acid Dye Remover Based on Solvent Characteristics Tsutomu Kamata, Yoko Ishikawa, Nobuhiro Iwasaki R&D Department of Totalcare Products, POLA Chemical Industries, Inc. As evidenced by the current prevalence of brown hair among Japanese, the number of people using hair coloring is increasing. The reason for this is that it is becoming more socially acceptable to color one's hair to match mood or clothing or to hide gray hair. The number of people using acid dyes is on the rise, due to their convenience of use. However, the number of complaints of skin staining caused by acid dyes is also increasing. Stains on skin caused by on Deodorant- Satoru Iida, Noboru Ichinose, Tetsuo Gomi, Keita Someya, Koji Hirano, Miharu Ogura, Sadahiko Yamazaki, Kazutoshi Sakurai Aromatic & Perfumery Center, Biological Science Research Center, Lion Corporation Takasago International Corporation We evaluated axillary malodor extracted from 66 adult men to identify their key compounds so that deodorants can be formulated to be more effective against them. Using sensory evaluation, we classified the malodors into five groups. Using GC/MS and Ge/Olfactory analysis, we identified two key compounds: the vinyl ketonesl-octen-3-one (OEO) and cis-1,5-octadien-3-one (ODO) . Both have a very strong metallic odor and a very low odor threshold. Examination of their generation mechanism revealed that the iron and the unsaturated fatty acids in the living body were related. Morus alba was found to repress the generation of these vinyl ketones due to its remarkable anti-oxidization effect A New Dermatological Availability of the Flavonoid Fraction from Licorice Roots -Effect on Acne- Toshimitsu Kambara , Yanyang Zhou , Yoshihito Kawashima, Naoko Kishida, Kenji Mizutani, Takao Ikeda, Koichiro Kameyama Research & Development Division, Research Center, Maruzen Pharmaceuticals Co., Ltd. Aoyama Dermatological Clinic In the course of our studies on the further application of licorice as a cosmetic ingredient, we studied a new