Nanoemulsions containing plant oils : How do they influence hair treatment ? / F. L. Tamashiro in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 43, N° 2 (04/2021)  

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 43, N° 2 (04/2021) . - p. 136-143 Titre : Nanoemulsions containing plant oils : How do they influence hair treatment ? Type de document : document électronique Auteurs : F. L. Tamashiro, Auteur ; M. N. Yukuyama, Auteur ; M. V. R. Velasco, Auteur ; G. L. B. de Araujo, Auteur ; N. A. Bou-Chacra, Auteur Année de publication : 2021 Article en page(s) : p. 136-143 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Cosmétiques Emulsions -- Emploi en cosmétologie Nanoémulsions Produits capillaires Surfactants Systèmes de livraison (pharmacie) Index. décimale : 668.5 Parfums et cosmétiques Résumé : - Objective : Cosmetic and dermatological products, mainly the hair treatments, are projected to have remarkable growing in coming years. Nanotechnology, specifically nanoemulsions, has potential to be used in several hair products, owing to their beneficial properties. Concurrently, plant-derived cosmetics have become more popular over the years to consumers who prefer a safer, natural and sustainable approach. There is a lack of studies combining plant oils and nanotechnology for haircare formulations. In this work, different plant oil-loaded nanoemulsions were prepared to investigate the influence of their particle size, zeta potential and composition on hair treatment efficacy. - Methods : Coconut, olive and Abyssinian oils, alone or in combination, were loaded into nanoemulsions by high-pressure homogenization method (HPH). The mean particle size, polydispersity index and zeta potential were measured by the dynamic light scattering (DLS) method, and a stability test was performed for five months. A sensorial screening evaluation performed by the analyst and the combing test using Dia-Stron® instrumentation were applied on hair tresses treated by these nanoemulsions. - Results : The use of different plant oils for nanoemulsion resulted in distinct final particle sizes and zeta potential. However, results suggested no significant difference between them in hair tresses combing efficacy compared by Dia-Stron instrument testing. Moreover, the plant-loaded nanoemulsions with increased concentration of cationic surfactant indicated a 50% reduction in combing force using this device when compared to control, in addition to better sensory results by screening test compared to other nanoemulsions and control. - Conclusion : The composition of plant oils, particle size or zeta potential of the prepared nanoemulsions does not seem to significantly influence hair performance. Thus, we suggest that finding the right balance between cationic surfactant and plant oils may be the most appropriate path to develop effective nanoemulsions in hair treatment. Note de contenu : - METHDODS : Preparation of nanoemulsions - Nanoemulsions Characterization - Stability study - Efficacy study on hair tresses - RESULTS : Determining mean particle size, polydispersity index, zeta potential and pH of nanoemulsions - Stability study - Efficacy study of hair tresses treated with plant oil-loaded nanoemulsions - DISCUSSION : Influence of particle size - Influence of zeta potential (ZP) - Influence of composition DOI : https://doi.org/10.1111/ics.12667 En ligne : https://drive.google.com/file/d/1EewAfuI-GS0YzrLUuLIhpD5IRsSAkm3l/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35753 [article]

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