It has been reported that hair was affected by shampooing and chemical treatment. However, no other detailed study on dissolved proteins and amino acids from damaged hair has been reported. The purpose of the present study was to analyze dissolved proteins and amino acids from hair after bleaching.
Untreated woman's hair was washed and treated with bleaching agent. Bleached hair was soaked in various solutions such as distilled water, acetic acid, ammonia, and SLS 1.0% aqueous solution. Dissolved proteins and amino acids were analyzed by fluorometric amino acid analyzer after acid hydrolysis.
The amount of dissolved proteins from bleached hair was more than untreated one, and these amino acid compositions were different. Among amino acids, cysteic acid dissolved from bleached hair was markedly different. Amounts of dissolved amino acids from bleached and untreated hair were much less than those of dissolved proteins. The higher pH of the soaking solution, the more dissolved proteins from hair and the hair damage amplified more significantly the effects of pH in bleached hair. However, amino acids composition of the dissolved proteins was not different among those soaking solutions. SLS was well known as a material of shampoo and the effect of SLS 1.0% aqueous solution on the amount and the amino acid composition of dissolved proteins was not different from water.
In conclusion, the effect that bleaching has on hair could be demonstrated quantitatively by the analysis of dissolved proteins and amino acids from hair. From these results, it was suggested that this method might be one of the useful indicators of hair damage.

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Previous report showed that proteins and amino acids were dissolved from bleached hair. This study was carried out to determine the affects of permanent-waving agent on the dissolution of proteins from hair, breaking point and waving effect.
Dissolution of proteins into permanent-waving agent was measured as previously reported. Breaking points of hair treated by permanent-waving agent were evaluated by the tensile tester after treatment by oxidizing agent for 15 minutes. The waving effect was measured by the method of kirby.
The higher pH of the permanent-waving agent, the more dissolved proteins from hair. Breaking points of hair were decreased at higher pH. The waving effect increased as the rise of pH, but it decreased at pH 10. On the contrary, the amount of dissolved proteins from hairs and the breaking point were slightly influenced by the treatment time.
It is noteworthy that the amounnt of dissolved proteins and breaking point gave a good correlation. From these results, the analysis of dissolved proteins from hair to evaluate hair damage was suggested to be important. Permanent-waving agent gave damage to hair greately, and it was confirmed that much proteins dissolved in the short time. Most of dissolved one was seemed to be peptides or proteins but not to be free amino acids.

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In these days various series of perfumes are on the market. It is very important for cosmetic companies to know what types of perfumes are preferred, and what kind of impression those perfumes give. On the 13th Scientific Seminer of the SCCJ we published the results of our research about the evolution of the sensory terms (that is image of perfumes) to the expert terms of perfumes, under the title of “The Development of the Image Evolution of the Sensory Terms on Creating Perfumery”. We have used the results in practice and we have had a good achievement in developing fresh type of perfume as to Citrus types, and Oriental types of perfumes as to Animal and Balsam types. However, it turned out that it failed in developing Floral types, Aldehyde Floral types and Chypre types of perfumes. We found that some gaps existed between perfumers and consumers in image formation to the perfumes.
Now we carried out the sensory evaluation with 21 perfumes by 43 consumer-panels and 9 perfumer-panels using 20 sensory terms and 15 expert terms (for only perfumers) to grasp the difference between consumer-panels and perfumer pannels.
Consequently it proved that the perfumers are superior to consumers because the variance of evaluation data is small and the discriminating ability is high, while as to consumers the variance of evaluation data is large and the discriminating ability is low. however after classifying the 43 consumer-panels using cluster analysis, they were divided into 5 clusters, and the variance of evaluation data becomes small and the discriminating ability becomes high in each cluster.
As to the terms based on the concept of Light-Heavy, the consumers' evaluation data in each cluster corresponds to that of the perfumers'. However, as to the other terms, the evaluation data between the consumers and the perfumers was different. Only one cluster never corresponds to the concept of perfumes. It is concluded that each cluster has a character, then it is necessary for perfumers to create perfumes aiming at one or some clusters, considering each cluster's character.

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We measured the skin color approx. 370 Japanese women aged from teens to fifties
After completing the statistical reserch and cluster analysis of obtained data, We checked up their preference of make-up product.
1) The skin color distributes in the range of Hue 8R-7YR, value 5.5-7.3, and Chroma 3.0-4.5 by Muncell Renotation System.
2) As the age gose on, the skin color tends to become yellowish, low value, and high chroma.
While preference of foundation apt to be pinkish, high value, and low chroma.
3) The result of cluster analysis shows that the preference of foundation is closely related to the skin color.

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For development of skin care products, the studies of their typification by sensory evaluation are very effective. At this point of view, we tried to classify milk lotions as follows.
At first, in order to explore classification scale of milk lotions, 10 well-known milk lotions were evaluated by round robin method about the difference of touch and skin feeling for each pair (45 pairs). As a result of data analysis by MDS, synthetic classification scale from light to rich was suggested.
Next, 134 samples were evaluated about 24 items by an expert, arranged with the synthetic classification scale from the data analysis by quantification, and categolized to 6 groups. These information from the classification were summerized visually as a chart.
At last, 24 samples were selected from the 134 samples, propriety of the synthetic classification scale was verified by mass panel test data, and as a physical classification method, their compressive stress were measured by tensipresser and the result was compared with sensory classification.

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For the purpose of establishing the beauty theory of makeup technique, we measured the facial shapes and formation of about 600 Japanese women, 18 years to 75, by original methods, and researched their characteristics and transformation by aging.
By these results, the classifications of facial, eye and mouth shapes of Japanese women, and the processes of their transformations by aging were described.
Moreover, make up techniques for looking younger were suggested.

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Titanium dioxide coated mica (TiO₂-coated mica) onto which colored pigments such as iron oxide, prussian blue, chromium oxide or carmine are coated, is called colored TiO₂-coated mica.
It may cause stability probrems in cosmetics.
We have developed a colored nacreous pigment having bright color tone and pearly gloss having excellent stability and safety. In order to obtain such colored nacreous pigment, a part of titanium dioxide layer on mica was reduced to black titanium oxide, and the reduced TiO₂-coated mica was recoated with titanium dioxide layer. The products obtained were the colored nacreous pigment, which was colored by interference color of titanium dioxide, and had extremely improved color tone, good consistency of color appearance and interference color. Various colors were abailable by adjusting the thickness of the titanium dioxide layer recoated on the reduced TiO₂-coated mica. This colored nacreous pigment does not contain any colored pigments.

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