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hair cosmetics

R Peng, Z Sonner, A Hauke, E Wilder, J Kasting, T Gaillard, D Swaille, F Sherman, X Mao, J Hagen, R Murdock, J Heikenfeld
Wearable sweat biosensensing technology has dominantly relied on techniques which place planar-sensors or fluid-capture materials directly onto the skin surface. This 'on-skin' approach can result in sample volumes in the μL regime, due to the roughness of skin and/or due to the presence of hair. Not only does this increase the required sampling time to 10's of minutes or more, but it also increases the time that sweat spends on skin and therefore increases the amount of analyte contamination coming from the skin surface...
October 18, 2016: Lab on a Chip
Anaïs L Carniciu, Jonathan Chou, Ilya Leskov, Suzanne K Freitag
PURPOSE: This study retrospectively reviews preseptal cellulitis and abscesses involving the eyebrow to elucidate the bacteriology and potential causative factors. METHODS: A retrospective chart review was conducted to identify patients who had been diagnosed with preseptal cellulitis or abscess involving the eyebrow at the Massachusetts Eye and Ear Infirmary between 2008 and 2015. Demographic, clinical, and microbiological data were collected. RESULTS: Eighty patients with eyebrow infections were identified, of whom 49 (61...
October 5, 2016: Ophthalmic Plastic and Reconstructive Surgery
Dan Li, Shi-Bin Lin, Biao Cheng
BACKGROUND: For 20 years, intense pulsed light (IPL) technology has been used to treat various medical problems. IPL has since developed rapidly, becoming popular among patients worldwide. Recently, IPL has been used mainly for cosmetic purposes. Researchers are constantly seeking new applications of IPL to meet the increasing needs of patients. OBJECTIVE: This review summarizes the development of IPL devices, discusses the current literature on the clinical application of IPL to increase our understanding of IPL, and provides guidance for broadening its clinical applications...
October 2016: Photomedicine and Laser Surgery
Jayanta Kumar Patra, Kwang-Hyun Baek
This paper investigated the green synthesis of silver nanoparticles (AgNPs) using aqueous extract of silky hairs of corn (Zea mays L.) which is a waste material of the crop, as both a reducing and stabilising/capping agent. The AgNPs were characterised by UV-visible spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), thermogravimetric analysis (TGA), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). The average size of AgNPs was found to be 249...
October 2016: IET Nanobiotechnology
Ioanna Katsikantami, Stavros Sifakis, Manolis N Tzatzarakis, Elena Vakonaki, Olga-Ioanna Kalantzi, Aristidis M Tsatsakis, Apostolos K Rizos
Phthalates are ubiquitous environmental contaminants which are used in industry as plasticizers and additives in cosmetics. They are classified as Endocrine Disrupting Chemicals (EDCs) which impair the human endocrine system inducing fertility problems, respiratory diseases, childhood obesity and neuropsychological disorders. The aim of this review is to summarize the current state of knowledge on the toxicity that phthalates pose in humans based on human biomonitoring studies conducted over the last decade...
September 23, 2016: Environment International
K Eustace, V Jolliffe, A Sahota, K Gholam
A 28-year-old man presented with a 10-day history of scalp nodules. He had undergone hair transplantation 2 months previously. Incision and drainage of one of the nodules yielded gelatinous material, which was sent for microscopy and culture, including low-temperature culture. After 2 weeks of incubation, culture of the nodule yielded acid- and alcohol-fast bacilli, which were identified as Mycobacterium abscessus, a rapidly growing, nontuberculous mycobacterium, which has been reported to cause cutaneous, soft tissue and respiratory infections following trauma, surgery or injection with nonsterile needles...
October 2016: Clinical and Experimental Dermatology
Nicole Gerlach, Matthias Mentel, Tim Köhler, Benjamin Tuchscherer, Birgit Garbe, Jasmina Ülker, Hagen Tronnier, Ulrike Heinrich, Mike Farwick
Sphingolipids are well known to promote keratinocyte differentiation and to induce ceramide production. In addition, they show anti-inflammatory and antimicrobial activities. Thus, the aim of this study is to investigate the potential effect of sphinganine on prolonging the hair anagen rate and improving the overall hair quality and scalp health. The inhibitory potential of sphinganine toward 5-α-reductase was studied using an in vitro assay. The stimulation of the antimicrobial peptide HBD2 by sphinganine was measured by real-time polymerase chain reaction and immunostaining...
2016: Clinical, Cosmetic and Investigational Dermatology
Erling Thom
Postpartum effluvium is a well-known clinical fact. However, following some minor research activities in the 1960s, very little has happened on the research front of the subject. It was hypothesized that postpartum hair loss might be a manifestation of a change in the hair growth cycle occurring normally during pregnancy. Recently, new research has been published trying to explain the mechanism of action behind this frequently occurring hair growth disruption, and to develop a functional treatment schedule and regime...
September 23, 2016: Journal of Cosmetic Dermatology
Parvaneh Mohammadi, Khalil Kass Youssef, Nasser Aghdami, Saeed Abbasalizadeh, Hossein Baharvand
Billions of dollars are annually invested in pharmaceutical industry and cosmetic sector with intent to develop new drugs and treatment strategies for alopecia. Because the hair looks an important characteristic of humans - an effective appendage in perception, expression of beauty, and preservation of self-esteem - the global market for hair loss treatment products is exponentially increasing. However, current methods to treat hair loss endure yet multiple challenges, such as unfavorable outcomes, non-permanent and patient-dependent results as well as unpredictable impacts, which limit their application...
September 21, 2016: Stem Cells and Development
S J E Hwang, R Anforth, G Carlos, P Fernandez-Peñas
Over the past decade, targeted therapies such as BRAF inhibitors, MEK inhibitors and immunotherapies such as anti-CTLA4 and anti-PD1 antibodies have emerged as novel treatments of advanced melanoma. Along with increased use of these therapies, a range of cutaneous adverse events have also emerged, varying from more serious and frequent cutaneous squamous cell carcinoma to mere cosmetic changes such as curly hair or rare severe toxic epidermal necrolysis. Early detection and management of these cutaneous adverse events will aid patients to receive accurate treatment, avoid unnecessary discontinuation of anti-tumour treatment and improve the patient's overall quality of life...
September 15, 2016: Actas Dermo-sifiliográficas
Ahmed K Salama
Cosmetics are one of the most important sources of releasing heavy metals. Different varieties of chemicals are used in cosmetic products as ingredients and some are used as preservatives. There are concerns regarding the presence of harmful chemicals in these products. Among the harmful chemicals, cosmetic products contain heavy metals. The present study was conducted to determine the content of certain heavy metals in the products made in different countries and marketed in Saudi Arabia. Thirty-one products of different brands or misbrands of commonly used cosmetic products (hair cream, beauty cream, skin cream, hair food formula, hair gel, whitening daily scrub, shampoo, shower gel, body care, body lotion, hand wash, daily fairness, shaving cream, toothpaste, germ and beauty soap, and cream soap) were purchased from local markets of Saudi Arabia...
October 2015: Environmental Monitoring and Assessment
Feroze Kaliyadan, B B Gosai, Walid Naief Al Melhim, Kaberi Feroze, Habib Ahmad Qureshi, Sayed Ibrahim, Joel Kuruvilla
INTRODUCTION AND BACKGROUND: Cosmetic procedures for hair, such as bleaching, dyeing, and straightening, are commonly used around the world. It has been suggested that excessive use of such procedures can cause damage to the hair shaft. We aimed to assess hair shaft changes using scanning electron microscopy (SEM) in female volunteers who frequently use hair treatment procedures such as bleaching, dyeing, or straightening. METHODS: A cross-sectional, controlled study in a sample of 25 female volunteers (19 study group and 6 controls) in the age group of 18-45 years...
April 2016: International Journal of Trichology
Lien Verhulst, An Goossens
Immediate skin reactions are common in dermatological practice, but may often be overlooked. The main objective of this article is to provide an update of the literature concerning immediate-type reactions or contact urticaria/contact urticaria syndrome caused by cosmetic ingredients in terms of immediate clinical symptoms, positive reactions following open, scratch but, most often, prick testing, and sometimes the detection of specific IgE antibodies. To this end, a selective search in different medical literature databases was performed...
September 4, 2016: Contact Dermatitis
Sneha Chenji, Alan H Wilman, Dennell Mah, Peter Seres, Angela Genge, Sanjay Kalra
The presence of metallic compounds in facial cosmetics and permanent tattoos may affect the quality of magnetic resonance imaging. We report a case study describing a signal artifact due to the use of a leave-on powdered hair dye. On reviewing the ingredients of the product, it was found to contain several metallic compounds. In lieu of this observation, we suggest that MRI centers include the use of metal- or mineral-based facial cosmetics or hair products in their screening protocols.
August 30, 2016: Magnetic Resonance Imaging
Kristin L Bater, Masaru Ishii, Andrew Joseph, Peiyi Su, Jason Nellis, Lisa E Ishii
Importance: Hair transplant is among the most common cosmetic services sought by men, with more than 11 000 procedures performed in 2014. Despite its growing popularity, the effect of hair transplant on societal perceptions of youth, attractiveness, or facets of workplace and social success is unknown. Objectives: To determine whether hair transplant improves observer ratings of age, attractiveness, successfulness, and approachability in men treated for androgenetic alopecia and to quantify the effect of hair transplant on each of these domains...
August 25, 2016: JAMA Facial Plastic Surgery
Xuelei Lai, Montserrat Soler-Lopez, Harry J Wichers, Bauke W Dijkstra
Human tyrosinase (TYR) is a glycoprotein that initiates the first two reactions in the melanin biosynthesis pathway. Mutations in its encoding gene cause Oculocutaneous Albinism type I (OCA1), the most severe form of albinism, which is a group of autosomal recessive disorders characterized by reduced or absent production of melanin in skin, hair and eyes. Despite extensive structural and characterization studies of its homologues in lower eukaryotic organisms, the catalytic mechanism of human TYR and the molecular basis of OCA1 are largely unknown...
2016: PloS One
Sara Zakerin, Shirin Fahimi, Maedeh Rezghi
BACKGROUND: Freckles are numerous pigmented spots of the skin, mainly confined to the face, even arms and back. Although freckles are light-brown macules, most frequently observed in individuals with red or blond hair, they are common to Asian people too. Freckles increase in number, size, and depth of pigmentation during the summer months. Histologically, freckles show increased production of melanin pigment by a normal number of melanocytes. Freckles commonly stop spreading before adolescence and last for life, but could sometimes be subtle in adulthood...
May 2016: Iranian Journal of Medical Sciences
Lillian C Becker, Wilma F Bergfeld, Donald V Belsito, Ronald A Hill, Curtis D Klaassen, Daniel C Liebler, James G Marks, Ronald C Shank, Thomas J Slaga, Paul W Snyder, F Alan Andersen
The Cosmetic Ingredient Review Expert Panel (CIR Panel) reviewed the safety of hydroxypropyl bis(N-Hydroxyethyl-p-Phenylenediamine) HCl, which functions as an oxidative hair dye ingredient. The Panel considered relevant animal and human data provided in this safety assessment and concluded that hydroxypropyl bis(N-hydroxyethyl-p-phenylenediamine) HCl is safe for use in oxidative hair dye formulations as described in this safety assessment.
August 3, 2016: International Journal of Toxicology
Akmam H Al-Mahdi
Surgical visibility of the joint is often compromised by the efforts to protect the facial nerve and its branches. Several approaches to the temporomandibular joint have been proposed over the years and perhaps the standard and most commonly used incision is the preauricular which is then extended with coronal incision to improve visibility and safety during surgery. The authors present a new modification based on the achievement of an aesthetically acceptable and inconspicuous scar in the temporal area. This is achieved by using a preauricular incision extended with a zigzag incision as a routine approach to the temporomandibular joint instead of the straight coronal incision...
October 2016: Journal of Craniofacial Surgery
Hyun-Joo Lee, Won-Jeong Kim, Jun-Young Kim, Hoon-Soo Kim, Byung-Soo Kim, Moon-Bum Kim, Hyun-Chang Ko
BACKGROUND: Hair dye is one of the most common causes of allergic contact dermatitis. The main allergen has been identified as para-phenylenediamine. To prevent the recurrence of contact dermatitis to para-phenylenediamine, patients should discontinue the use of para-phenylenediamine-containing hair dye products. However, many patients are unable to discontinue their use for cosmetic or social reasons. Sometimes, they continue to have symptoms even after switching to so-called "less allergenic" hair dyes...
November 2016: Indian Journal of Dermatology, Venereology and Leprology
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