A new counseling system, we developed, called makeup color simulator, is described. Various makeup pattern images can be easily displayed by using this system.
This system consists of 8 bit microprocessor, a color display monitor which has resolution as high as 256×256 pixels and 256³ (16, 777, 216) colors, a light pen, and a tablet digitizer.
Color image data is transfered by a color video camera under digital control. A characterization of color on the monitor was examined by the original method, then relative equation between X, Y, Z and R, G, B on the color monitor was difined. Some flowcharts of programs and simulated faces on a color monitor are shown.
This system is capable of utilization 1) to advice a makeup pattern to our customers and 2) to develop new makeup pattern.

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Protein denaturation was investigated to establish an “in vitro” evaluation method of surfactants in connection with their “in vivo” irritation potency to human skin. Eventually a new method with simplicity and high reproducibility was established by using quantitative analysis with gel-per-meation chromatography (GPC). The protein denaturing potency of the commercially available surfactants was measured by using the developed method. Synergistic reduction in protein denaturation was observed in the mixed systems of anionic and amphoteric surfactants. The synergistic reduction was explained in terms of the physico-chemical properties of the mixed surfactants.
The mechanism was considered to be possibly due to the formation of hydrophobic complexes between the anionic and amphoteric surfactants.

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The purpose of this study was to develop instrumental methods for in vivo measurements of skin elasticity for characterizing skin conditions and substantiating cosmetic efficacy. The bio-rheological instruments developed for this purpose were designed to measure responses equivalent to sensory perception by cosmetic users.
The “Skin Elastometer” measured swelling height of the skin placed under a suction cup with variable pressure. We introduced the microcomputer into skin elastometer system for priciser measurement and speedy analysis.
By this instrumental system, we measured the facial skin of 59 women in Pola laboratories and 90 women in Nagoya, and tried to evaluate the efficacies of treatment techniques, massaging and steam massaging. The apparent elasticity change due to the parts of face occured, and the substiation of treatments efficacy was suggested by this experiments.

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The quantity of skin surface lipids eluted with carbon tetrachloride was accurately determined by infrared spectrophotometry, which was obtained from only one square centimeter of skin surface.
A crystalline cell (Light pass length=10mm) was used for its measurement. The linear relationships was formed between skin surface lipid's weight and its maximum absorbance of the methylene strech band at 2, 930cm^-1.

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Pullulan is a neutral polysaccharide with a linear structure comprising repeating α-1, 6-linked maltriose molecules which extracellularly elabolated by Aureobasidium pullulans.
Pullulan is dessolved readily in water to form a viscous, non-gelling, aqueous solution and used as binder, thickener and coating agent in food, pharmaceutical and other industries.
Pullulan films prepared with aqueous solution are edible and oxygen impermeable.

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