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Development of an indicator thet quantifies the tendency of cosmetic product usage / C. Guinot in IFSCC MAGAZINE, Vol. 6, N° 2 (04-05-06/2003)
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Titre : Development of an indicator thet quantifies the tendency of cosmetic product usage Type de document : texte imprimé Auteurs : C. Guinot, Auteur ; J. Latreille, Auteur ; L. Ambroisine, Auteur ; Elodie Mauger, Auteur ; M. Tenenhaus, Auteur Année de publication : 2003 Article en page(s) : p. 125-130 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Etude marketing' 'Habitudes cosmétiques' 'Utilisation de produit cosmétique' 'Profils des utilisateurs' Index. décimale : 668.5 Parfums et cosmétiques Résumé : The aim of this project was to produce an indicator (score) that quantifies the tendency of cosmetic product usage and could be used to describe individuals in consumer studies as well as in the selection process for sensory analysis studies or in application test studies. A study was conducted on a representative sample of 1000 women ot the Ile-de-France area to collect information on the cosmetic habits of each volunteer, i.e., the use of different types of cosmetic products. The Partial Least Square (PLS) path modelling approach, which allows theunderlying structure of the data to be taken into account, was used to produce a series of partial scores corresponding to homogeneous groups of products (body care, facial care, specific facial care, skin complexion, make-up, and sun care), and a global score summarizing the global tendency of cosmetic product use by balancing the different types of products. Then, the relevance of the global score was checked using behavioral and skin characteristic variables known to influence the use of cosmetic products. Twenty-seven cosmetic products grouped into 6 single-dimensional blocks were retained for the construction of the scores. Finally, an equation was produced to allow the calculation of each individual's global score directly from the initial data. As expected, our global score was found to be relevant to characterize specific groups of subjects : significant effects on the global score were found for the socio-professional category of the "main salary earner", habits such as voluntary sun exposure, sporting activities, importance of personal appearance, facial skin type, dryeness of body skin, and age. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10597
in IFSCC MAGAZINE > Vol. 6, N° 2 (04-05-06/2003) . - p. 125-130[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003879 - Périodique Bibliothèque principale Documentaires Disponible Objective evaluation of the placebo effect in cosmetic treatments a randomized controlled study / Fernanda Distante in IFSCC MAGAZINE, Vol. 9, N° 3 (07-08-09/2006)
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Titre : Objective evaluation of the placebo effect in cosmetic treatments a randomized controlled study Type de document : texte imprimé Auteurs : Fernanda Distante, Auteur ; Valerie Pagani, Auteur ; Adriana Bonfigli, Auteur ; Luigi Rigano, Auteur ; Joachim W. Fluhr, Auteur Année de publication : 2006 Article en page(s) : p. 203-208 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Méthode de bioingénierie' 'Efficacité cosmétique' Gluconolactone 'Age la peau' Index. décimale : 668.5 Parfums et cosmétiques Résumé : A product's packaging and claimed efficacy may stimulate pleasant emotions during the use of cosmetics, thus enhancing their perceived benefits. The aim of this study was to evaluate if smart packaging and strongly claimed efficacy attributes can influence the objectively measured efficacy, allowing a true placebo effect to be associated with a given cosmetic treatment. A marketed anti-aging gluconolactone-based formulation was selected for the study and packaged both in a fancy sophisticated jar and in an unbranded plain container. Thirty-six female volunteers (age range: 30--55 years) with facial photoageing were selected for the study and randomly assigned to the fancy or plain packaged product. Pre-agreed messages aimed at extolling the product's cosmetic effects accompanied delivery of the fancy-packaged product to panellists. The given product was applied to the face twice a day for 8 weeks. Instrumental measurements of the skin colour (a* and L* parameter), skin capacitance, skin tensile properties (R0, R2, R6), skin thickness and skin microrelief parameters (Ra and Rz) were taken at baseline and after 4 and 8 weeks of use. Clinical and subjective evaluations were also carried out at each control visit. Moreover, the amount of cream consumed during usage was calculated by weighing the given jars at each visit. Statistical analysis of the data obtained showed a significant improvement in all instrumental parameters for both groups (‘fancy’ and ‘plain’ packaging), although no significant differences were detected between the two groups at any time. The improvement was higher in the ‘plain’ group for most instrumental parameters except for micro-relief parameters where the outcome was better in the ‘fancy’ group. Promotion of facial muscle relaxation deriving from the application of the fancy-packaged cream could be a possible explanation for this finding. Also the product's efficacy and sensory properties were perceived with a higher positive impact in the fancy group. The better performance of the plain packaging group could be related to daily application of the ‘proper’ amount of cream. In fact, this group consumed a larger amount of cream than the ‘fancy’ group. These results show that a true placebo effect cannot be induced by packaging characteristics, although they can slightly influence the degree of the expected skin benefits in different ways. Moreover, proper daily dosage of the product appears to be a key factor in improving the biophysical skin properties related to anti-ageing and restoring effects. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10444
in IFSCC MAGAZINE > Vol. 9, N° 3 (07-08-09/2006) . - p. 203-208[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008186 - Périodique Bibliothèque principale Documentaires Disponible Production of the tissue inhibitor of metalloproteinase-2 (TIMP-2) and evaluation of its potential as anti-aging active / Rolf Schütz in IFSCC MAGAZINE, Vol. 8, N° 3 (07-08-09/2005)
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Titre : Production of the tissue inhibitor of metalloproteinase-2 (TIMP-2) and evaluation of its potential as anti-aging active Type de document : texte imprimé Auteurs : Rolf Schütz, Auteur ; Beatrice König, Auteur ; Beat Hochtrasser, Auteur ; Patrick Stolz, Auteur ; Dominik Imfeld, Auteur Année de publication : 2005 Article en page(s) : p. 171-177 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antiâge
Biomolécules activesTags : 'Matrice métalloprotéinases' TIMP 'Expression de la protéine recombinante' du collagène' Ingrédient cosmétique' Index. décimale : 668.5 Parfums et cosmétiques Résumé : Collagen-degrading matrix metalloproteinases (MMPs) show increased activities predominantly in UV-irradiated skin as well as in chronologically aged skin. MMPs are therefore reasoned to be associated with the degenerative alterations in the collagenous dermal extracellular matrix, which in turn may accelerate the signs of skin aging such as wrinkle formation and skin sagging. In normal physiological processes MMP activity is controlled by the endogenous tissue inhibitors of metalloproteinases (TIMPs). Here we report the biotechnological production of the human-identical inhibitor TIMP-2 and its evaluation as an anti-aging active through attenuation of the degenerative MMP activity. The recombinant TIMP-2 polypeptide selectively inhibited MMPs in vitro which are involved in aging processes and showed efficient IC50 values in the low nanomolar range. Topical application of formulated TIMP-2 on skin explants with subsequent UVB irradiation (2-3 MED) resulted in an almost quantitative protection against collagen degradation. Thus, our biotechnological production of TIMP-2 leads to the active broad-spectrum MMP inhibitor that reduces excessive MMP activity and thereby preserves the structural integrity of collagen network. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10490
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Code-barres Cote Support Localisation Section Disponibilité 003888 - Périodique Bibliothèque principale Documentaires Disponible Visualizing cosmetic application procedures : a novel tool for universal sharing of professional skills / Minori Kakizawa in IFSCC MAGAZINE, Vol. 16, N° 2 (04-05-06/2013)
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Titre : Visualizing cosmetic application procedures : a novel tool for universal sharing of professional skills Type de document : document électronique Auteurs : Minori Kakizawa, Auteur ; Masashi Nakatani, Auteur ; Tomoyuki Kawasoe, Auteur ; Kozo Shiojima, Auteur ; Satoshi Kinoshita, Auteur ; Kazumi Koketsu, Auteur ; Jun Wada, Auteur Année de publication : 2013 Article en page(s) : p. 101-105 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Cosmétiques 'Procédure application cosmétique' 'Force contact' Capteur Ergonomie 'Conception universelle' Index. décimale : 668.5 Parfums et cosmétiques Résumé : The application technique used for a cosmetic procedure is, besides the cosmetic products themselves, an important factor in effectively maintaining healthy facial and body skin. However, evaluation of cosmetic application procedures remains technically challenging owing to the subtle motions involved, which cannot be precisely detected by shooting a video. To overcome this difficulty, we developed a wearable sensor system to estimate the finger contact force as well as measure the subtle motion of the fingertip without a covering finger pad. We evaluated the differences in the cosmetic application procedure between general users and professional beauty consultants using the sensor. The results suggested that the intensity of the force applied by general users to the skin covers a much broader range than that of the professionals and that the finger activity of professionals was more rhythmic and of smaller amplitude than that of general users. The cosmetic application procedures of general users alter instruction in the cosmetic application procedure by professional beauty consultants were also evaluated. The results suggested that the amplitude of finger activity can be readily taught, although the contact force was relatively difficult to teach without showing one's own contact force quantitatively. These data show that the sensor system can be used to effectively evaluate the difference between individual cosmetic application procedures. In addition, we used the wearable sensor to teach the face massage technique. The results indicate that the cosmetic application procedure can be sufficiently imparted using the sensor. This sensor system is useful not only for measuring cosmetic application procedures quantitatively, but also for teaching cosmetic treatments such as skin care massage and makeup skills. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18786
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Code-barres Cote Support Localisation Section Disponibilité 15157 - Périodique Bibliothèque principale Documentaires Disponible