Journal of Society of Cosmetic Chemists of Japan
Online ISSN : 1884-4146
Print ISSN : 0387-5253
ISSN-L : 0387-5253
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Volume 23, Issue 2
Displaying 1-5 of 5 articles from this issue
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  • [title in Japanese]
    1989 Volume 23 Issue 2 Pages 100-101
    Published: September 15, 1989
    Released on J-STAGE: August 06, 2010
    DOIhttps://doi.org/10.5107/sccj.23.100
    JOURNAL FREE ACCESS
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  • Studies on the initial rate of release of p-hydroxybenzoic acid derivatives from oily cosmetic materials to aqueous solution
    Hajime Shimomura, Yoshio Koizumi, Toshiaki Sugiyama
    1989 Volume 23 Issue 2 Pages 103-110
    Published: September 15, 1989
    Released on J-STAGE: August 06, 2010
    DOIhttps://doi.org/10.5107/sccj.23.103
    JOURNAL FREE ACCESS
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    The rate of release of p-hydroxybenzoic acid derivatives from oil vehicle was measured in vitro method with Sartorius Absorption Simulator. Each of the measured rates shows constant at first and gradually becomes small in all cases. In this paper, we discuss the behavior of drug release in constant rate region. The rate of release was found to be controlled by both the viscosity of oil vehicle and the partition coefficient of drug between oil vehicle and receptor phases. All oil vehicle-drug systems studied have small deviation between experimental rate and calculated one which is determined by both factors, viscosity and coefficient.
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  • Computer-Assisted Analysis system of 13C-NMR Spectra Desinged for Composition Determination of Cosmetic Products (II)
    Kikuko Sugawara, Hajime Kikuchi, Keiichi Honda
    1989 Volume 23 Issue 2 Pages 111-117
    Published: September 15, 1989
    Released on J-STAGE: August 06, 2010
    DOIhttps://doi.org/10.5107/sccj.23.111
    JOURNAL FREE ACCESS
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    An attempt was made at composition analyses of hair dye products and foundations by utilizing computer-assisted analysis system of 13C-NMR (CMR) which had previously been developed in our laboratory. The system consists of the measurement of 13C-NMR spectrum of an unknown mixture and of subsequent computer analysis of the spectrum.
    Despite the facts that hair dye products are usually composed of both large amounts of various surfactants and small quantities of labile oxidizing dyes susceptible to air and that the foundations being diverse in formulation, on the other hand, contain a lot of inorganic pigments which are not amenable to CMR, analytical results on organic components in these cosmetic products were found satisfactory, thereby indicating, when our earlier work is taken into account, that this system would be successfully applicable to composition analyses of a variety of organic mixtures as well as cosmetics.
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  • Study on Adsorption of Surfactants on Skin and Selective Cleaning of Lipids by Cleansing Foams
    Fumiaki Hashimoto, Michiko Haruyama, Tokio Yamashita, Toshiaki Iso
    1989 Volume 23 Issue 2 Pages 126-133
    Published: September 15, 1989
    Released on J-STAGE: August 06, 2010
    DOIhttps://doi.org/10.5107/sccj.23.126
    JOURNAL FREE ACCESS
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    The effect of the alkyl chain length of fatty acid soaps (C12-C18) and the other type of surfactants using for cleansing foams on adsorption on skin and on selective cleaning ability have been studied. It has been also examined whether there is any relationship between the adsorption volume of the surfactants, selective cleaning ability and skin condition.
    Squalene and cholesterol were used as indicator of the selective cleaning. The selective cleaning ability of the surfactants has been obtained from the wash-off ratio of cholesterol/squalene +cholesterol. Potassium palmitate and potassium stearate indicated to have higher wash-off ratio than other surfactants and had the selective cleaning ability. Besides these surfactants did not adsorb on skin. Moreover in an users' test of cleansing foams, the skin condition applied the sample including palmitic acid and stearic acid was better than that of another sample.
    In conclusion, it has been suggested that the surfactants which do not adsorb on skin and have selective cleaning ability maintain the skin condition to be good.
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  • Optical modification of skin complexion through application of overlapping foundation films
    Hirokazu Iyanagi, Yutaka Takasuka
    1989 Volume 23 Issue 2 Pages 134-142
    Published: September 15, 1989
    Released on J-STAGE: August 06, 2010
    DOIhttps://doi.org/10.5107/sccj.23.134
    JOURNAL FREE ACCESS
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    To provide a basis for designing more effective makeup preparations, the optical effects of mixing two colored foundations, consisting of Color-corrective Foundation (A) and Regular Foundation (B) was investigated. Attempts were made to prove the effectiveness of Foundation A through a prediction of complexion tone when both foundations were applid. In this study, a novel theory on modification of skin complexion was proposed. The application of the theory requires two factors: (1) Formation of non-mixing two-layered film, consisting of Film A and Film B on the skin and (2) Assigning of separate functions for each films, i.e., Film A primary for hinding imperfections, and film B primary for rendering color. Foundations optimizing these factors have been prepared and found to modify skin complexion much more effectively than conventional foundations.
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