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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)
[article]
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 Formulating for efficacy / Johann W. Wiechers in IFSCC MAGAZINE, Vol. 7, N° 1 (01-02-03/2004)
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Titre : Formulating for efficacy Type de document : texte imprimé Auteurs : Johann W. Wiechers, Auteur ; Caroline L. Kelly, Auteur ; Trevor G. Blease, Auteur ; J. Chris Dederen, Auteur Année de publication : 2004 Article en page(s) : p. 13-20 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Ingredients actifs' 'Profils de distribution peau' 'Sélection d'émollients' 'Index relatif polarité' 'Système livraison' 'Conception formulation' 'Coefficient cloison d'octanol/eau' Index. décimale : 668.5 Parfums et cosmétiques Résumé : Active ingredients have been around in cosmetics for a long time but have they really resulted in active cosmetic products? In order to achieve this, the right ingredient needs to be delivered to the right location at the right concentration for the correct period of time and the extent (and therefore the concentration) of this delivery depends on the formulation.
From a rather theoretical approach based on the polarity of the active ingredient, the stratum corneum and the oil phase, the relative polarity index was established that enables the selection of a suitable emollient for ensuring skin penetration of the active ingredient. Practical examples subsequently show the validity of this approach that demonstrates that one can regulate the delivery of an active molecule (and therefore the efficacy of a cosmetic formulation) by selection and control of the emollient system. Cosmetic formulations are generally quite complex mixtures and subsequent experiments using different emulsifier systems indicated that this component of a cosmetic formulation could also have an impact on steering the active ingredient to the right layer of the skin, although it is too early to be able to derive general rules from this.Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10541
in IFSCC MAGAZINE > Vol. 7, N° 1 (01-02-03/2004) . - p. 13-20[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003882 - Périodique Bibliothèque principale Documentaires Disponible