Accueil
Détail de l'auteur
Auteur Erik Schulze zur Wiesche |
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la recherche
Coenzyme Q10 has anti-aging effects on human hair / Melanie Giesen in IFSCC MAGAZINE, Vol. 11, N° 1 (01-02-03/2008)
[article]
Titre : Coenzyme Q10 has anti-aging effects on human hair Type de document : texte imprimé Auteurs : Melanie Giesen, Auteur ; Thomas Welß, Auteur ; Erik Schulze zur Wiesche, Auteur ; Volker Scheunemann, Auteur ; Sabine Gruedl, Auteur ; Yasmin Oezkabakcioiglu, Auteur ; Elisabeth Poppe, Auteur ; Dirk Petersohn, Auteur Année de publication : 2008 Article en page(s) : p. 37-42 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Coenzyme Q10' 'Follicule de cheveux' Vieillissement 'Kératinocytes externes la gaine racine' 'Synthèse kératine' Index. décimale : 668.5 Parfums et cosmétiques Résumé : Ubiquinones are the most widespread and therefore best investigated bioquinones. Due to their hydrophobic isoprenoid side chain, ubiquinones can be solubilized in organic solvents or lipids but are insoluble in water. Using a specific emulsifier system it has been possible to deliver positive effects to biological systems also from aqueous formulations. Ubiquinone-50, also referred to as coenzyme Q10, is well known in cosmetic science and especially in skin care because of its antioxidant activity. It is found in the membranes of peroxisomes, lysosomes, vesicles, the endoplasmic reticulum and notably in the inner membrane of the mitochondrion, where it is an important part of the electron transport chain. Using coenzyme Q10 in the proposed emulsifier system we could show that the molecule not only has relevance as an anti-aging bioactive in skin care but also has positive effects on the human hair follicle. The hair follicle is a complex mini organ and synthesis of hair keratin, the major component of hair fibers, is an essential prerequisite for the growth of strong and healthy hair. But like all biological systems the hair follicle, the biologically active part of the hair, also undergoes an aging process associated among other things with a decline in certain hair keratins. Due to this age-related shift in basic structural proteins of the hair shaft, mature hair often becomes fragile and difficult to manage. Therefore it is a challenge for cosmetic science to provide bioactives to fight age-related changes and maintain a youthful appearance of hair. Using cultivated hair follicle keratinocytes we identified coenzyme Q10 as a potent bioactive that stimulates the gene expression of different hair keratins, especially those which are reduced during aging processes in hair follicles. These results led us to investigate a shampoo and a tonic formulation enriched with coenzyme Q10 in a placebo-controlled panel study. In a left/right comparison a group of healthy volunteers older than 40 years of age applied the formulations daily for 4 days. Throughout the test period the gene expression of different hair keratins from plucked hair follicles was determined using quantitative polymerase chain reaction techniques. Subsequent statistical analysis revealed an increase in age-relevant hair keratins in human hair roots treated with coenzyme Q10, thus pointing out the striking benefits of coenzyme Q10 in hair care formulations. We conclude that coenzyme Q10 is an ideal ingredient for hair care formulations, providing anti-aging properties through activation of specific keratins aligned with the needs of mature hair. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10387
in IFSCC MAGAZINE > Vol. 11, N° 1 (01-02-03/2008) . - p. 37-42[article]Réservation
Réserver ce document
Exemplaires (2)
Code-barres Cote Support Localisation Section Disponibilité 010282 - Périodique Bibliothèque principale Documentaires Disponible 010056 - Périodique Bibliothèque principale Documentaires Disponible Determination of the feel of hair after cosmetic treatment-Sensory and objective test methods / U. Assmus in IFSCC MAGAZINE, Vol. 11, N° 2 (04-05/2008)
[article]
Titre : Determination of the feel of hair after cosmetic treatment-Sensory and objective test methods Type de document : texte imprimé Auteurs : U. Assmus, Auteur ; P. Augustin, Auteur ; H. Hensen, Auteur ; P. Hössel, Auteur ; G. Lang, Auteur ; H. Leidreiter, Auteur ; A. Markowetz, Auteur ; V. Martin, Auteur ; B. Noecker, Auteur ; E. Poppe, Auteur ; M. Pfaffernoschke, Auteur ; H. Schmidt-Lewerkuhne, Auteur ; Erik Schulze zur Wiesche, Auteur ; A. Schwan-Jonczyk, Auteur ; J. Wood, Auteur ; F.-J. Wortmann, Auteur Année de publication : 2008 Article en page(s) : p. 121-128 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Human hair' 'Feel' 'Handle' 'Conditioner' 'Conditioning shampoo' 'Combing' 'Measurement' 'Suppleness' 'Microscopy' 'Round robin test' Résumé : This work was performed in the period from 2002 to 2006. The feel of natural and damaged hair was studied after treatment with classical conditioning formulations. A cetrimonium chloride/cetyl alcohol conditioner and shampoos based on sodium lauryl ether sulphate and polyquaternium-10 or dimethiconol, respectively, were used. In addition to a broad-based round robin test to determine the hair feel in 12 test centres, suppleness measurements, atomic force microscopy and scanning electron microscopy, combing force measurements and shine measurements were performed. The cetrimonium chloride conditioner and the silicone shampoo produced the best hair feel. There was a correlation between hair feel and the suppleness measurement. The coating of the hair surface after shampooing with polyquaternium-10 and dimethiconol could be seen with atomic force microscopy and scanning electron microscopy. There was no correlation of the hair feel with shine or ease of combing. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10372
in IFSCC MAGAZINE > Vol. 11, N° 2 (04-05/2008) . - p. 121-128[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 010540 - Périodique Bibliothèque principale Documentaires Disponible A highly sensitive method to determine the washing resistance of artificial hair colors / Erik Schulze zur Wiesche in IFSCC MAGAZINE, Vol. 11, N° 2 (04-05/2008)
[article]
Titre : A highly sensitive method to determine the washing resistance of artificial hair colors Type de document : texte imprimé Auteurs : Erik Schulze zur Wiesche, Auteur ; Siglinde Erpenbach, Auteur Année de publication : 2008 Article en page(s) : p. 139-142 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Color fading' protection' retention' 'Hair color resistance' wash simulation' Résumé : Due to the improved performance of modern hair colorants, the high natural variability in hair qualities and the individual influences of manual product applications, colour care effects of cosmetic treatments are very difficult to detect. A new, highly sensitive test method to study the colour fading behaviour of human hair was established for a large variety of cosmetic treatments. This method is based on an automatic multistage application of standard wool tissues combined with automatic colour evaluation by means of CIE L × a × b × measurements (DIN 5033). The delta E values are the main interest because they include all information regarding the L (black vs. white), a (red-green) and b (blue-yellow) axes defined in the Hunter Lab colour space. For validation of this new method, different permanent and non-permanent hair colour shades were applied to undamaged light brown Caucasian hair strands. The hair strands were washed manually stepwise 30 times and the colour loss compared with the results obtained on wool tissues using an automatic application system. For most of the investigated hair colours, a coefficient of determination of r2 > 0.99 was achieved. Modern permanent hair colours show a high resistance to cosmetic treatments. Over 90% of the initial colour result was retained after 30 product applications. Shampoo and conditioner formulations induce different degrees of colour loss in hair. In basic formulas significant influences of single surfactants could be detected. The new method using wool tissues correlates very well with that using manually washed Caucasian hair strands. This automatic method is very time-effective and offers an excellent reproducibility with a high sensitivity for assessing product influences on artificial hair colours. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10374
in IFSCC MAGAZINE > Vol. 11, N° 2 (04-05/2008) . - p. 139-142[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 010540 - Périodique Bibliothèque principale Documentaires Disponible Specific repair of aging hair keratin / Erik Schulze zur Wiesche in IFSCC MAGAZINE, Vol. 11, N° 4 (10-11-12/2008)
[article]
Titre : Specific repair of aging hair keratin Type de document : texte imprimé Auteurs : Erik Schulze zur Wiesche, Auteur ; Thomas Gassenmeier, Auteur ; Detlef Fischer, Auteur ; Elisabeth Poppe, Auteur ; Petra Somfleth, Auteur ; Karola Schäfer, Auteur ; Andrea Körner, Auteur Année de publication : 2009 Article en page(s) : p. 317-320 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Hair keratin strengthening Intermediate filament aging simulation restructuring Index. décimale : 668.5 Parfums et cosmétiques Résumé : A new method was developed to study aging effects onhuman hair keratin caused by shampooing, blow drying and sunlight. An automatic multiple process allowed reproducible simulation of the stress of approximately 100 Central European summer days in only 5 working days. Stress-strain measurements showed a significant weakening of the hair structure due to simulated aging effects. A new keratin active containing peptides identical to those in human hair was developed. The new keratin active penetrates deeply into the cortex cells, which was demonstrated by means of fluorescence microscopy. Aging damage was successfully prevented by strengthening the hair structure. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3259
in IFSCC MAGAZINE > Vol. 11, N° 4 (10-11-12/2008) . - p. 317-320[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 011000 - Périodique Bibliothèque principale Documentaires Disponible