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Cosmetic Applications (cosmetic + application)
Selected AbstractsMesotherapy and Phosphatidylcholine Injections: Historical Clarification and ReviewDERMATOLOGIC SURGERY, Issue 4 2006ADAM M. ROTUNDA MD BACKGROUND Mesotherapy was originally conceived in Europe as a method of utilizing cutaneous injections containing a mixture of compounds for the treatment of local medical and cosmetic conditions. Although mesotherapy was traditionally employed for pain relief, its cosmetic applications, particularly fat and cellulite removal, have recently received attention in the United States. Another treatment for localized fat reduction, which was popularized in Brazil and uses injections of phosphatidylcholine, has been erroneously considered synonymous with mesotherapy. Despite their attraction as purported "fat-dissolving" injections, the safety and efficacy of these novel cosmetic treatments remain ambiguous to most patients and physicians. OBJECTIVE To distinguish mesotherapy from phosphatidylcholine injections by reviewing their history and the relevant experimental or clinical findings. METHODS A comprehensive search of Medline indexed literature and conference proceedings. RESULTS All the published studies evaluating the clinical efficacy of traditional mesotherapy currently originate from Europe. These reports focus primarily on musculoskeletal pain and vascular disease, rather than cosmetic applications. Although experimental data suggest that a number of traditional mesotherapy ingredients may theoretically reduce fat, these effects have not been supported in peer-reviewed studies. An increasing number of reports demonstrate that subcutaneous injections of a formula containing phosphatidylcholine combined with its emulsifier, deoxycholate, are effective in removing small collections of adipose tissue. Cell lysis, resulting from the detergent action of deoxycholate, may account for this clinical effect. CONCLUSIONS Mesotherapy is distinct from a method of treating adipose tissue with subcutaneous injections of deoxycholate alone or in combination with phosphatidylcholine. Additional clinical and experimental studies are necessary to more definitively establish the safety and efficacy of these treatments. [source] Natural surfactants used in cosmetics: glycolipidsINTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Issue 4 2009N. Lourith Synopsis Cosmetic surfactant performs detergency, wetting, emulsifying, solubilizing, dispersing and foaming effects. Adverse reactions of chemical synthesis surfactant have an effect on environment and humans, particularly severe in long term. Biodegradability, low toxicity and ecological acceptability which are the benefits of naturally derived surfactant that promises cosmetic safety are, therefore, highly on demand. Biosurfactant producible from microorganisms exhibiting potential surface properties suitable for cosmetic applications especially incorporate with their biological activities. Sophorolipids, rhamnolipids and mannosylerythritol lipids are the most widely used glycolipids biosurfactant in cosmetics. Literatures and patents relevant to these three glycolipids reviewed were emphasizing on the cosmetic applications including personal care products presenting the cosmetic efficiency, efficacy and economy benefits of glycolipids biosurfactant. Résumé Les tensioactifs sont utilisés en cosmétique pour leur pouvoir détergent, mouillant, émulsionnant, solubilisant, dispersant ou moussant. Les conséquences graves des surfactants chimiques de synthèse sur l'environnement et sur l'homme agissent particulièrement à long terme. Aussi, la demande de surfactant d'origine naturelle plus biodégradable avec une faible toxicité et une meilleure acceptation écologique est en hausse. Les tensioactifs issus de microorganismes offrent des propriétés de surface convenables pour des applications cosmétiques et en particulier combinés avec leurs activités biologiques. Les sophorolipides, les rhamnolipides et les lipides mannosylérythritol sont les glycolipides tensioactifs les plus largement utilisés en cosmétique. Les applications cosmétiques de ces trois glycolipides sont examinées dans la littérature et les brevets particulièrement pour leurs bénéfices en termes d'efficacité et d'économie. [source] Cosmetic features and applications of lipid nanoparticles (SLN®, NLC®)INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Issue 3 2008E. B. Souto Synopsis A detailed review of the literature is presented in attempts to emphasize several advantages of solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC) for cosmetic applications. Examples of several actives are given and the main features of the solid core of SLN and NLC for topical delivery of cosmetics are discussed. Lipid nanoparticles have been more and more explored in pharmaceutical technology, showing superior advantages for topical purposes over conventional colloidal carriers. Résumé Un examen détaillé de la littérature est présenté dans les tentatives de souligner les plusieurs avantages des nanoparticule lipidique solide (SLN) et lipidique nanostructurés (NLC) pour applications cosmétiques. Exemples de plusieurs substances actives sont données et les caractéristiques principales du noyau plein de SLN et de NLC pour la libération topique des produits de beauté sont discutées. Les nanoparticles lipides ont été de plus en plus explorées en technologie pharmaceutique, montrant des avantages supérieurs pour les porteurs colloïdaux conventionnels pour administration topique de buts. [source] APPLICATION OF TWO CONSUMER PROFILING TECHNIQUES TO COSMETIC EMULSIONSJOURNAL OF SENSORY STUDIES, Issue 5 2010MARÍA EMMA PARENTE ABSTRACT The sensory characteristics of cosmetic products are commonly used for attracting consumers' attention in advertising campaigns and packaging. Thus, in order to appropriately satisfy consumers' sensory expectations, it is important to gather information about their perception of the sensory characteristics. In this context, the aim of the present work was to apply two consumer methodologies (intensity scales and a check-all-that-apply [CATA] question) to gather information about the sensory profile of cosmetic emulsions. Six cosmetic emulsions with different formulation, widely differing in their sensory characteristics, were evaluated by two groups of 50 female consumers. One group used intensity scales to evaluate eight attributes of the emulsions and the other completed a CATA question comprising 20 terms related to sensory characteristics of the emulsions, cosmetic applications and effects on the skin. Both intensity scales and CATA question were able to detect differences in consumers' perception of the sensory characteristics of the evaluated emulsions. These differences could be explained considering the samples' formulation, which suggests their validity and indicates that they could consist on interesting alternatives to traditional sensory profiles obtained with trained assessors' panels. PRACTICAL APPLICATIONS The application of intensity scales or a CATA question consisted of an interesting approach to gather information about consumers' perception of cosmetic products. Despite both methodologies provided similar results, the application of CATA questions could be regarded as more natural for consumers and easier to use. Besides, CATA questions could enable the identification of consumers' perception of the sensory characteristics of cosmetic products, but also their effects on the skin and the cosmetic applications for which they are considered appropriate. An interesting application of this methodology could be the development of a line of cosmetic products with different applications or the selection of sensory and efficacy claims during the design of marketing strategies or labels of cosmetic products. [source] Selective transcutaneous delivery of energy to porcine soft tissues using intense ultrasound (IUS),,LASERS IN SURGERY AND MEDICINE, Issue 2 2008W. Matthew White MD Abstract Objective Various energy delivery systems have been utilized to treat superficial rhytids in the aging face. The Intense Ultrasound System (IUS) is a novel modality capable of transcutaneously delivering controlled thermal energy at various depths while sparing the overlying tissues. The purpose of this feasibility study was to evaluate the response of porcine tissues to various IUS energy source conditions. Further evaluation was performed of the built-in imaging capabilities of the device. Materials and Methods Simulations were performed on ex vivo porcine tissues to estimate the thermal dose distribution in tissues after IUS exposures to determine the unique source settings that would produce thermal injury zones (TIZs) at given depths. Exposures were performed at escalating power settings and different exposure times (in the range of 1,7.6 J) using three IUS handpieces with unique frequencies and focal depths. Ultrasound imaging was performed before and after IUS exposures to detect changes in tissue consistency. Porcine tissues were examined using nitro-blue tetrazolium chloride (NBTC) staining sensitive for thermal lesions, both grossly and histologically. The dimensions and depth of the TIZs were measured from digital photographs and compared. Results IUS can reliably achieve discrete, TIZ at various depths within tissue without surface disruption. Changes in the TIZ dimensions and shape were observed as source settings were varied. As the source energy was increased, the thermal lesions became larger by growing proximally towards the tissue surface. Maximum lesion depth closely approximated the pre-set focal depth of a given handpiece. Ultrasound imaging detected well-demarcated TIZ at depths within the porcine muscle tissue. Conclusion This study demonstrates the response of porcine tissue to various energy dose levels of Intense Ultrasound. Further study, especially on human facial tissue, is necessary in order to understand the utility of this modality in treating the aging face and potentially, other cosmetic applications. Lesers Surg. Med. 40:67,75, 2008. © 2008 Wiley-Liss, Inc. [source] | ||||||||||