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Journal of Cosmetic Science

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https://read.qxmd.com/read/30856095/relationship-between-cosmetics-use-self-esteem-and-self-perceived-attractiveness-among-lebanese-women
#1
Kassandra Fares, Souheil Hallit, Chadia Haddad, Marwan Akel, Tatiana Khachan, Sahar Obeid
The objective was to assess the variables related to the usage of cosmetic products among a representative sample of the Lebanese population, including self-perception, facial attractiveness satisfaction, body image, and self-esteem. This is a cross-sectional study, conducted between January 2018 and June 2018, which enrolled 2,072 female participants using a proportionate random sample from all Lebanese Mohafazat. The results of a linear regression, taking the customary cosmetic usage score as the dependent variable, showed that an increase in the self-esteem score (β = -0...
January 2019: Journal of Cosmetic Science
https://read.qxmd.com/read/30856094/comparing-surfactant-penetration-into-human-skin-and-resulting-skin-dryness-using-in-vivo-and-ex-vivo-methods
#2
Stephanie A Morris, Nicole McCardy, Ryan Thompson, Tina Allen, Amy Altemeier, Ken Wehmeyer, Rob Hinkle, Maiysha Jones, Rusty Spruell, Peter Stoffolano, Matthew A Miller, Peter Styczynski, Robert Glenn, Gerald B Kasting
Numerous tests have been developed to estimate a surfactant's mildness in rinse-off formulations. In this study, mixed surfactant systems were examined for their impact on surfactant penetration into the skin and skin hydration using in vivo and ex vivo methods. A forearm controlled application test (FCAT) was conducted, and skin hydration was evaluated using corneometry and visual dryness grading. Tape strip and cup scrub extractions were completed within the FCAT to examine the penetration of five individual surfactants into the skin in vivo ...
January 2019: Journal of Cosmetic Science
https://read.qxmd.com/read/30856093/protective-effects-of-sacran-a-natural-polysaccharide-against-adverse-effects-on-the-skin-induced-by-tobacco-smoke
#3
Moeko Doi, Yuki Sagawa, Kyohei Sasano, Takumi Tanaka, Taeko Mizutani, Yuri Okano, Hitoshi Masaki
Recent increases in air pollution have raised concerns about its adverse effects on human health. Sacran is a natural polysaccharide isolated from a cyanobacterium. We previously reported that sacran improves skin conditions because of its effects as an artificial barrier against external stimuli, which suggested that sacran might protect the skin against air pollutants. The goal of this study was to characterize the potential of sacran to protect human skin against damage from air pollutants and to compare sacran with hyaluronic acid (HA)...
January 2019: Journal of Cosmetic Science
https://read.qxmd.com/read/30856092/evaluating-the-moisturizing-abilities-and-sun-protection-factor-of-new-lip-balm-formulations
#4
Christoph Gfeller, George Hardie, Gilbert Shanga, Harish Mahalingam
This report explores dry-skin models to assess the potential of a new lip balm formulation to hydrate dry skin or lips, and presents sun protection factor (SPF) values for five new lip balm formulations. Evaporimeter [for transepidermal water loss (TEWL)], Skicon® , and Corneometer® were used to measure hydrating effects of lip balm formulations in a dry-skin leg model, and TEWL, DermaLab® Moisture Meter, Corneometer® , and visual assessments were used with a dry-lip model. SPF studies were conducted in accordance with either the U...
January 2019: Journal of Cosmetic Science
https://read.qxmd.com/read/30806622/preparation-and-evaluation-of-cream-mask-from-vietnamese-seaweeds
#5
Ngo Thi Hoai Thu, Hoang Thi Lan Anh, Hoang Thi Minh Hien, Nguyen Cam Ha, Luu Thi Tam, Tran Xuan Khoi, Tran Mai Duc, Dang Diem Hong
Seaweed is rich source of natural bioactive compounds that could be exploited as functional ingredient for cosmetic applications. The aim of this study was to evaluate the biochemical compositions and bioactivities of 10 seaweeds collected from coastal waters of Vietnam. The present study also prepared and evaluated cream mask from mixture of seaweeds extracted with water. The results showed that Caulerpa lentillifera , Sargassum crassifolium , Ulva reticulata , and Kappaphycus alvarezii are potential rich sources of protein, polysaccharide, carotenoids, and vitamins with high antibacterial, cell proliferation, moisture retention, and tyrosinase inhibitory activities...
November 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30806621/cosmetic-use-in-nigeria-may-be-safe-a-human-health-risk-assessment-of-metals-and-metalloids-in-some-common-brands
#6
Godwin Chukwuebuka Ajaezi, Cecilia Nwadiuto Amadi, Osazuwa Clinton Ekhator, Sorbari Igbiri, Orish Ebere Orisakwe
Twenty different brands of cosmetic products were purchased from supermarkets in Port Harcourt, Rivers State, Nigeria, with the aims to determine the levels of metals and assess the health risk to humans through long-term usage. The concentration of metals (arsenic, lead, mercury, cadmium, and nickel) in the cosmetic samples was measured with atomic absorption spectrophotometry after acid digestion. The concentration of metals in these brands of cosmetic studied ranged from As: 0.001-0.0161 mg/kg, Pb: 0.289-2...
November 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30806620/a-comparison-of-physicochemical-properties-of-an-emulsion-containing-chemically-interesterified-fat-for-demanding-skin-with-commercial-formulations-for-atopic-skin
#7
Małgorzata Kowalska, Magdalena Woźniak, Sławomir Janas, Diana Mróz
The aim of the work was to evaluate and analyze the functional properties of a new emulsion product made according to our recipe containing interesterified fat with the properties of selected popular preparations used in the care of atopic skin. Also, the composition of all tested preparations was analyzed for active substances contained in these preparations. Skin hydration level and transepidermal water loss (TEWL) after application of commercial formulations as well as of our own preparation on the basis of interesterified fat were assessed...
November 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30767888/applying-light-scattering-theory-to-measure-rinsability-of-hair-conditioners
#8
Selene Velez, Sarah Heether, Jung-Mei Tien, Farahdia Edouard
As the world is striving to become more sustainable, water consumption is considered an important area of focus, especially in those regions with limited freshwater resources. To address this issue, the personal care industry has identified faster rinsability of hair care products as a way to contribute to water preservation efforts. To understand rinsability, analysis of colloidal systems and an investigation into concentration of whole products in water is critical. However, particle size and particle migration in colloidal systems require the use of specialized optical methods...
September 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30767887/quasi-static-torsional-deformation-of-single-hair-fibers-application-of-a-modeling-approach-and-results-from-cosmetic-treatments
#9
Rebecca J Lunn, Yann Leray, Steve Bucknell, Daniel M Stringer
To date, most single hair fiber mechanical testing publications in the literature have focused on tensile deformation with torsional measurements receiving far less attention. However, there is much to be gained from the measurement of torsional properties of a single hair fiber such as providing an insight into the shear stiffness changes that are associated with cuticle damage. This study outlines the potential use of torsional measurements to differentiate between cosmetic treatments where other modes of deformation do not...
September 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30767886/quantifying-hair-motion
#10
Trefor A Evans, Sebastien Breugnot
A commercially-available instrument, previously intended to visualize and quantify hair shape and volume, has been modified to measure hair motion. Specifically, a transversal motor now induces a side-to-side oscillating tress stimulus, while a video camera records the outcome. Image analysis software allows for quantifying the amount of motion (i.e. the amplitude), the shape and volume of the hair during motion, and the homogeneity of the hair (i.e. bulk -vs- flyaways). Each of these parameters has considerable dependence on the frequency of oscillation and so evaluations are carried out by systematically varying this parameter...
September 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30767885/fragrance-retention-in-virgin-and-bleached-caucasian-hair
#11
André Medice, Carolina Lourenço, Rebeca Gasparin, Adelino Nakano
Human hair, when bleached, undergoes oxidation of melamine granules and its structural proteins. This work aims to compare fragrance retention in both virgin and bleached hair, taking into consideration the interactions between fragrance compounds and hair before and after chemical modification. The bleaching process of straight dark brown Caucasian hair was carried out using a 4.5% wt. hydrogen peroxide solution at pH 9.5. Fragrance raw materials were incorporated in a shampoo formulation and applied on hair by washing, followed by rinsing...
September 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30767884/investigating-prevention-of-uv-damage-to-hair-using-raman-spectroscopy
#12
Carrie B Grundman
The goal of this work is to demonstrate the impact of UV and potential protective materials on hair fiber cuticle protein structure using Raman spectroscopy.
September 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30767883/role-of-internal-lipids-in-hair-health
#13
Jennifer M Marsh, Shane Whitaker, Tim Felts, William Shearouse, Mike Vatter, Arto Määttä, Matthew Thompson, Timothy J Hawkins
Saturated and unsaturated fatty acids make up 85% of the total hair lipid content and are found in the cuticle and cortical cell membrane complex. Although these lipids only make up 2-6% of the hair's overall weight, they play a crucial role in keeping hair healthy, influencing shine, feel, manageability, and strength. The objective of this work was to understand the mechanisms of how these lipids are lost on exposure to external stressors, such as chemical treatments, washing, and UV exposure and to understand how their loss impacts hair strength...
September 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30767882/morphological-changes-of-human-hair-related-to-graying
#14
Lorena Bechthold, Erik Schulze Zur Wiesche, Franz J Wortmann
The appearance of hair is a crucial factor of human well-being. Besides hair color and shine, the dynamic movement characteristics have a great impact on a youthful look, which is desirable at all ages. However, the hair follicle is subject to biochemical changes which tend to become obvious in the mid-30s by the appearance of the first nonpigmented "gray" hairs. Especially, these fibers seem to be unruly, hereby influencing the hair collective. In this investigation, the complex dynamic movement of swinging hair is modeled by an in vitro method...
September 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30767881/hair-shaft-formation-and-mitochondrial-bioenergetics-combining-biology-chemistry-and-physics
#15
Yi Shan Lim, Duane P Harland, Thomas L Dawson
Research into biological manipulation of hair "quality" has ebbed and waned but today is in a resurgence. Hair appearance is regulated by multiple intervention opportunities-adding more hairs; increasing hair "amount" by modulating shaft diameter or shape; or, in principle, by altering shaft physical properties by changing its synthesis. It is likely that improved benefits may be achieved by combining multiple areas-minimizing follicle loss and miniaturization, maximizing shaft production, and treating the existing shaft...
September 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30767880/bridging-the-dead-hair-live-follicle-divide-in-applied-hair-research
#16
Marta Bertolini, Natalia Botchkareva, Gill Westgate, Chris Ward, Paul Cornwell, Ralf Paus
For many decades, applied hair research has been hampered by an unproductive intellectual and conceptual divide between researchers who are primarily interested in the hair shaft (HS), its structural properties, visual appearance and cosmetic manipulation, and those investigators who are mainly interested in the fascinating miniorgan that cyclically regenerates the HS, the hair follicle (HF). This article attempts to bridge this unproductive divide between the "dead hair" and "live follicle" worlds by summarizing both current key concepts and major open questions on how the HF, namely, the anagen hair bulb and its precortical hair matrix keratinocytes, generate the HS, focusing on selected key signaling pathways...
September 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30767879/hair-mechanical-anisotropy-what-does-it-tell-us
#17
Steven Breakspear, Bernd Noecker, Crisan Popescu
Hair fibers were examined by atomic force microscopy, nanoindentation. By indenting along (longitudinal) and across (transversal) the fiber, we evaluated the Young's modulus and its dependence on the moisture content (relative humidity) of the environment. The ratio of the two values collected for Young's modulus, at a given relative humidity, is defined as the anisotropy index ( IA ) of the fiber and the acquired results give the evolution of the index of anisotropy with the relative humidity. The use of the model of composite materials allowed us to relate the anisotropy index to the fiber internal architecture...
September 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30767878/preface
#18
Trefor A Evans
No abstract text is available yet for this article.
September 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30311903/determination-of-fluorescent-whitening-agents-in-cosmetics-and-liquid-detergent-by-high-performance-liquid-chromatography-with-diode-array-detector-in-tandem-with-fluorescence-detector
#19
Yu-Xiang Gu, Jin-Qin Yang, Si-Yi Pan, Lei Wang, Ze-Lin Zhou
Five distyryl-type fluorescent whitening agents (FWA85, 210, 220, 351, and 353) were determined in cosmetics and liquid detergent by high-performance liquid chromatography with diode array detector in tandem with fluorescence detector. The samples were extracted with ultrasound in 33% acetonitrile for 10 minutes and the components were determined by ion-pair chromatography on an MG C18 column. The limits of detection were from 0.01 to 0.1 mg·kg-1 and the limits of quantification were from 0.04 to 0.4 mg·kg-1 ...
July 2018: Journal of Cosmetic Science
https://read.qxmd.com/read/30311902/skin-tolerance-of-three-types-of-dead-sea-mud-on-healthy-skin-a-short-term-study
#20
RANDOMIZED CONTROLLED TRIAL
Saja Hamed, Abdel-Majeed Almalty
Dead Sea mud (DSM) is commonly used by patients with various skin conditions because of its contents of healing elements. No study was published to show whether DSM application weakens or strengthens skin barrier function. In this study, we investigated the impact of 30-minute single application of various types of DSM ("As Is" mud, mud with extra Dead Sea salt, and over-the-shelf mud) on the barrier function of normal skin. The influence of 30-minute application of various types of DSM was investigated noninvasively on skin barrier properties of healthy female adult volunteers ( n = 75) on predetermined circular areas...
July 2018: Journal of Cosmetic Science
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