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Water-in-oil microemulsions composed of monoolein enhanced the transdermal delivery of nicotinamide / Momoko Kitaoka in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 43, N° 3 (06/2021)
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Titre : Water-in-oil microemulsions composed of monoolein enhanced the transdermal delivery of nicotinamide Type de document : document électronique Auteurs : Momoko Kitaoka, Auteur ; Trung Cong Nguyen, Auteur ; Masahiro Goto, Auteur Année de publication : 2021 Article en page(s) : p. 302-310 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorption cutanée
Barrière cutanée
Caractérisation
Dermo-cosmétologie
Formulation (Génie chimique)
Microémulsions
Nicotinamide
Peau -- Anatomie
Peau -- Physiologie
Peau -- Soins et hygièneIndex. décimale : 668.5 Parfums et cosmétiques Résumé : - Objective : Nicotinamide, also known as niacinamide, is a water-soluble vitamin that is used to prevent and treat acne and pellagra. It is often found in water-based skin care cosmetics because of its high water solubility. Nicotinamide is a small molecule with a molar mass of 122.1 g/mol. However, it has a hydrophilic nature that becomes an obstacle when it penetrates through the skin. The topmost layer of the skin, the stratum corneum, acts as a strong hydrophobic barrier for such hydrophilic molecules. The oil-based formulations are expected to enhance the transdermal delivery efficiency of nicotinamide.
- Methods : We have developed oil-based microemulsion formulations composed of a squalane vehicle. Monoolein was used as an emulsifier that has a potential to enhance the nicotinamide delivery through the stratum corneum.
- Results : Because the mean size of the emulsions measured by dynamic light scattering was 20.9 ± 0.4 nm, the microemulsion formulation was stable under the long-term storage. Monoolein acted as a skin penetration enhancer, and it effectively enabled the penetration of nicotinamide through human abdominal skin, compared with nicotinamide in a phosphate-buffered saline solution. The flux was increased 25-fold. Microscopic imaging revealed that the hydrophilic bioactive compounds penetrated through the intercellular spaces in the epidermis.
- Conclusion : The monoolein-based microemulsion was transparent and stable, suggesting that it is a promising formulation for a transdermal nicotinamide delivery.
Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of microemulsions carrying nicotinamide - Particle size analysis - Reversed-phase high-performance liquid chromatography (HPLC) - Nicotinamide release test from the microemulsion formulation - In vitro skin penetration experiment - Fluorescence confocal laser scanning microscopy
- RESULTS AND DISCUSSION : Preparation and characteristics of microemulsions - In vitro penetration of nicotinamide - Histology analysis
- Table 1 : Compositions of 1 mL of the water-in-oil microemulsion formulations containing nicotinamide (5 mg/mL)
- Table 2 : Particle z-average and polydispersity index (PDI) of the microemulsions as measured through dynamic light scattering
- Table 3 : Skin penetration parameters of nicotinamide from a microemulsion formulation and PBSDOI : https://doi.org/10.1111/ics.12695 En ligne : https://drive.google.com/file/d/1S_tMLxYvVTqhDv2nBvZ_b9VETyVgpjaL/view?usp=shari [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35897
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 43, N° 3 (06/2021) . - p. 302-310[article]Water lily roots - Perfect volume for urban hair / Bernd Walzel in SOFW JOURNAL, Vol. 148, N° 10 (10/2022)
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Titre : Water lily roots - Perfect volume for urban hair Type de document : texte imprimé Auteurs : Bernd Walzel, Auteur ; Ulrike Bätz, Auteur ; Anja Hermann, Auteur ; Beatrix Senti, Auteur ; Tamina Shah, Auteur ; Stefan Bänziger, Auteur Année de publication : 2022 Article en page(s) : p. 38-41 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Actifs anti-pollution
Cheveux -- Soins et hygiène
Chimie végétale
Extraits de plantes
Extraits de plantes:Extraits (pharmacie)
Nénuphars et constituantsIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Water lilies originate from the water and symbolize beauty and purity. This association makes water lilies an ideal starting point to create water-based cosmetic concepts. The flowers, visible above the water, are seemingly the most attractive part of the plant. A closer look, however, uncovers that water lily roots are exceptional underwater factories of phytochemicals. Their long and branched root system produces a unique combination of metabolites – all potential additives for hair care products. Water Lily Root Extracts contain amphipathic saponins, antioxidative flavonoids, and keratin-enforcing tannins, a combination perfectly suited for the daily hair care routine.
With its proven efficacy, Water Lily Root Extract is a powerful ingredient for hair care applications. The extract protects hair from urban pollution, it improves hair manageability, it tames frizzy hair, and it optimizes hair volume and definition.Note de contenu : - Water lily - Perfectly adapted to an aquatic environment
- Extraction of water lily roots for cosmetic use - phytochemical analysis
- Water lily root extract protects hair against urban pollution - A real-life exposure study
- Water lily root extract improves hair manageability and quality
- Water lily root extract optimized hair volume and definitionEn ligne : https://drive.google.com/file/d/1o10n7QFuCTX7lNPUeXEvhnuf2kyegyAi/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38248
in SOFW JOURNAL > Vol. 148, N° 10 (10/2022) . - p. 38-41[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23660 - Périodique Bibliothèque principale Documentaires Disponible Water management of human hair / F.-J. Wortmann in IFSCC MAGAZINE, Vol. 10, N° 4 (10-11-12/2007)
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Titre : Water management of human hair Type de document : texte imprimé Auteurs : F.-J. Wortmann, Auteur ; Alexandra Hullmann, Auteur ; Crisan Popescu, Auteur Année de publication : 2008 Article en page(s) : p. 317-320 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Traitements cosmétiques' 'Coefficient de diffusion' 'Cheveu humain' Hystérèse 'Sorption l'eau' Index. décimale : 668.5 Parfums et cosmétiques Résumé : Temperature dependent isotherms for the water ab- and desorption of human hair were determined (25–65°C) together with the related diffusion coefficients and hysteresis effects. Special care was taken to standardize the physical history of the samples. With increasing temperature, isotherms, while preserving their shape, shift to lower regains while the hysteresis effect decreases. This is in accordance with expectations derived from the Rosenbaum-model for water sorption. The differential heat of water sorption changes from dry to wet hair between 1020 and 50 J/g H2O. Diffusion coefficients are of the order of 10-9 cm2/s. The coefficients increase with temperature and show a pronounced maximum in the range of medium regains. The temperature dependence follows the Arrhenius equation and exhibits activation energies that change from dry to wet hair between 55 and 30 kJ/mol. The sorption performance of strongly bleached hair, with and without an additional treatment with cetyltrimethylammonium bromide, was investigated. No significant effects either of the cosmetic treatment or of the ingredient were found. It is concluded that human hair exhibits a rather robust static and dynamic water sorption performance that, against initial expectations, is not readily changed by cosmetic processes and ingredients. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10414
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Code-barres Cote Support Localisation Section Disponibilité 009660 - Périodique Bibliothèque principale Documentaires Disponible Water quality that is more than skin deep / Kalpesh Shah in PERSONAL CARE EUROPE, Vol. 14, N° 2 (04/2020)
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Titre : Water quality that is more than skin deep Type de document : texte imprimé Auteurs : Kalpesh Shah, Auteur Année de publication : 2020 Article en page(s) : p. 81-83 Langues : Anglais (eng) Catégories : Cosmétiques -- Normalisation
Eau
Ingrédients cosmétiques
Qualité -- ContrôleIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Water is one of the most important and widely used ingredients in the production of cosmetic and personal care products. Therefore, ensuring the quality of this vital ingredient is crucial.
The European Cosmetics Regulation (EC) 1223/2009 requires that all products manufactured for use in the EU must comply with the ISO 22716 Good Manufacturing Practices (GMP) standard. The GMP guidelines state that water used as a cosmetic ingredient should be of a defined quality and that this should be maintained through regular testing or monitoring of the water. In terms of system design, it states that the water treatment system should be designed to avoid stagnation and contamination and allow sanitisation. It also requires that the materials used in the construction of the treatment system do not affect the quality of the water.
The ISO 22716 GMP is also used as a basis for regulation outside of Europe. In 2008, the International Cooperation on Cosmetics Regulation (ICCR), the group made up of regulatory authorities from Canada, the EU, Japan and the United States, adopted ISO 22716 as the standard for cosmetics manufacturing practice. It is also recognised in Southeast Asia by the ASEAN Consultative Committee for Standards and Quality (ACCSQ).Note de contenu : - Setting the standard
- Treatment options available
- Maintaining quality and ensuring complianceEn ligne : https://drive.google.com/file/d/1lhVFMDx3Ml2AICtyPpRXQkhnncI8xQTY/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33956
in PERSONAL CARE EUROPE > Vol. 14, N° 2 (04/2020) . - p. 81-83[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21621 - Périodique Bibliothèque principale Documentaires Disponible Water resistance determination of sunscreen products : the actual status / Stephan Bielfeldt in SOFW JOURNAL, Vol. 129, N° 7 (07/2003)
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Titre : Water resistance determination of sunscreen products : the actual status Type de document : texte imprimé Auteurs : Stephan Bielfeldt, Auteur ; Klaus-Peter Wilhelm, Auteur Année de publication : 2003 Article en page(s) : p. 14-16 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Facteur de protection solaire
Peau -- Soins et hygiène
Produits antisolaires
Résistance à l'humidité:Résistance à l'eauIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Water resistance of sunscreen products is an important parameter for the consumer. Since more and more cosmetic products and over-the-counter drugs are developed to be marketed all over the world the labeling of water resistance should mean the same in each country. This can only be achieved if one standard for water resistance measurements is accepted all over the world, defining water flow, water temperature, exposure time and labelling of water resistance. At present there seems to be agreement in the world that a global harmonization of sunscreen testing including the water resistance is needed. To achieve this goal still a lot of work in standardization has to be done. Only a scientifically and economically optimized test method will have chance of acceptance all over the world. Note de contenu : - Present status of water resistance testing
- Critical evaluation of water immersion methods considering the needs of international harmonizationPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28140
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Code-barres Cote Support Localisation Section Disponibilité 18182 - Périodique Bibliothèque principale Documentaires Disponible Water-resistant sunscreens for skin protection : an in vivo approach to the two sources of sunscreen failure to maintain UV protection on consumer skin / G. Puccetti in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 37, N° 6 (12/2015)
PermalinkWater retention of treated stratum corneum measured by a coupling method : thermal desorption-mass spectrometry / A. Gournay in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 17, N° 4 (08/1995)
PermalinkWater soluble or not ? A simple question difficult to answer / Joachim Venzmer in SOFW JOURNAL, Vol. 149, N° 10 (10/2023)
PermalinkWater vapour permeability of skin care products in relation to molecular and environmental influences / A. Strübmann in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 15, N° 6 (12/1993)
PermalinkWater vapour transmission and occlusivity in vivo of lipophilic excipients used in ointments / A. Frömder in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 15, N° 3 (06/1993)
PermalinkWater, water everywhere...? / Paul J. Matts in IFSCC MAGAZINE, Vol. 11, N° 3 (07-08/2008)
PermalinkWaxes : much more than viscosity control agents / Martina Heldermann in PERSONAL CARE EUROPE, Vol. 7, N° 1 (02/2014)
PermalinkWeak and damaged skin repaired by maracuja / Maud Chapis in PERSONAL CARE EUROPE, Vol. 12, N° 1 (02/2018)
PermalinkPermalinkPermalinkWell protected against multi-light and pollution / Solène Mine in SOFW JOURNAL, Vol. 145, N° 11 (11/2019)
PermalinkWetting and adhesion evaluation of cosmetic ingredients and products : correlation of in vitro–in vivo contact angle measurements / Priscilla Capra in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 39, N° 4 (08/2017)
PermalinkWhat are meters measuring ? / P. J. Dykes in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 24, N° 4 (08/2002)
PermalinkWhat if scalp flora was involved in sensitive scalp onset ? in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 38, N° 4 (08/2016)
PermalinkWhat is a caucasian 'fine' hair ? Comparing instrumental measurements, self-perceptions and assessments from hair experts / S. Bouabbache in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 38, N° 6 (12/2016)
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