Abstract：
:Synopsis A modified procedure for the determination of total N-nitroso compounds in personal care products was evaluated in collaborative studies organized through the UK Cosmetic Toiletry and Perfumery Association (CTPA). The method offers a true 'totals'determination in that a solution of the whole sample is analysed. Samples are dissolved/suspended in water or aqueous THF, and nitrite/nitrite ester interferences are removed by prior treatment with sulphamic acid. The treated test solution is denitrosated in a single reaction with HBr/acetic acid, in refluxing n-propyl acetate, and 'total'N-nitroso compounds are determined in a chemiluminescence reaction of the released nitric oxide with ozone. The use of a propyl acetate denitrosation solvent and of higher concentrations of HBr have improved both the sensitivity (routine limit of determination at 10 mugkg(-1)) and water tolerance of the method. The method was shown to recover N-nitrosamines quantitatively, and to be sufficiently repeatable and reproducible to be used as a screening technique for N-nitroso compounds in personal care products.
journal_name
Int J Cosmet Scijournal_title
International journal of cosmetic scienceauthors
Challis BC,Colling J,Cromie DD,Guthrie WG,Pollock JR,Taylor P,Telling GM,Wallace Ldoi
10.1111/j.1467-2494.1995.tb00127.xsubject
Has Abstractpub_date
1995-12-01 00:00:00pages
219-31issue
6eissn
0142-5463issn
1468-2494pii
ICS219journal_volume
17pub_type
杂志文章abstract：:Synopsis The principles on which stability tests are based are reviewed. The need to differentiate between product stability and product-container compatibility is emphasized. Recognition of this distinction is fundamental to the efficient organisation and execution of stability tests. Attention is also drawn to the d...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1467-2494.1985.tb00423.x
更新日期：1985-12-01 00:00:00
abstract：:Antioxidants play a vital role in protecting the skin from environmental distress. As the skin is constantly exposed to harmful UV radiation, endogenous antioxidants present in the superficial layers of the skin neutralize reactive oxygen species. Over time, antioxidants become depleted and loss their protective effec...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1468-2494.2012.00728.x
更新日期：2013-02-01 00:00:00
abstract：:Molecular chaperone, heat shock proteins (HSPs), stabilizes intracellular processes of cells under stress. Little is known about the role of molecular chaperone proteins in the skin pathology, rejuvenation and wound healing, or whether their expression is altered by environmental and physiological stress to the skin o...
journal_title：International journal of cosmetic science
pub_type： 杂志文章,评审
doi：10.1111/j.1468-2494.2010.00601.x
更新日期：2011-02-01 00:00:00
abstract：OBJECTIVE:Quinoa (Chenopodium quinoa Willd.) is a seed crop rich in bioactive compounds including phytoecdysones (especially 20-hydroxyecdysone, 20HE), polyphenols, proteins and essential fatty acids. We previously reported a method to leach and concentrate quinoa bioactives into a complex phytochemical mixture termed ...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/ics.12185
更新日期：2015-04-01 00:00:00
abstract：:Water homeostasis of the epidermis is important for the appearance and physical properties of the skin, as well as for water balance in the body. It depends on several factors, e.g. barrier quality, uptake of water into the epidermis, concentration of water-retaining humectants, and external humidity. Aquaporins (AQPs...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1468-2494.2007.00402.x
更新日期：2007-12-01 00:00:00
abstract：OBJECTIVE:Axillary wetness represents an unwanted effect of the physiologically vital sweating mechanism, especially when it becomes excessive. Cosmetic products reducing sweat secretion rely on aluminium salts as the active ingredient acting by physically blocking the sweat gland. Driven by the interest to better unde...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/ics.12679
更新日期：2020-12-01 00:00:00
abstract：:Synopsis This paper reports preliminary results of a study carried out on liquid crystal emulsions added to three different inorganic sunscreens: ultrafine zinc oxide, ultrafine titanium dioxide (inorganic-treated) and ultrafine titanium dioxide (organic-treated hydrophobically). The aim of the work was to investigate...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1467-2494.1994.tb00101.x
更新日期：1994-12-01 00:00:00
abstract：OBJECTIVE:We investigated the association of psychosocial problems, menopausal symptoms such as hot flushes, and trends of smoking and use of cosmetics in our previous study. In this follow-up study, we researched psychiatric disorders and psychosocial problems in menopausal women. METHODS:We designed a cohort study w...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/ics.12081
更新日期：2013-12-01 00:00:00
abstract：:Cocamidopropyl betaine (CAPB) has been the most important secondary surfactant for personal-cleansing products for a long time. Its excellent toxicological profile is an important reason for its increasing use in oral-care products. Recently it has gained interest for further applications such as household cleaners, d...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1046/j.1467-2494.1997.171719.x
更新日期：1997-10-01 00:00:00
abstract：OBJECTIVE:Equol has been shown to improve skin health and regeneration, due to its antioxidative, phytoestrogenic and epigenetic characteristics. The effects of a topical intervention on skin structure, telomere length and epigenetic markers in skin cells were analysed. METHODS:Sixty-four participants were divided in ...
journal_title：International journal of cosmetic science
pub_type： 杂志文章,随机对照试验
doi：10.1111/ics.12408
更新日期：2017-10-01 00:00:00
abstract：:Synopsis The ocular irritation potential of 107 cosmetics and toiletries was compared using the rabbit's eye Draize test (IOMA), a cytotoxicity in vitro method (CFIO), and the hen's egg chorioallantoic membrane test (HET-CAM). There was a good correlation between both alternative methods and the Draize test. Non-corre...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1467-2494.1995.tb00124.x
更新日期：1995-10-01 00:00:00
abstract：:Fading of artificial hair colour has been investigated by simulating actual usage conditions through exposure to artificial radiation in a weatherometer, with 0.35 mW (m(2)nm)(-1) at 340 nm, for 16-48 h, and by periodical washing. Hair colour was produced by using commercial two-part, permanent hair dyes with light au...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1467-2494.2006.00314_3.x
更新日期：2006-06-01 00:00:00
abstract：:In the past few years, the hair follicle has started revealing its beauty and mysteries. The existence of a growth and regeneration cycle, together with a unique tissue organization and complex regulatory network, make it a true paradigm of tissue homeostasis and dermal-epithelial crosstalk. In this brief review, I wi...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1046/j.0412-5463.2001.00109.x
更新日期：2002-02-01 00:00:00
abstract：:The vapour pressures of phenethyl alcohol and limonene in their water-in-oil microemulsion region were measured by head space gas chromatography of equilibrated samples. The results showed that the vapour pressure of both fragrance compounds in their mutual solutions without surfactant or water was significantly great...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1046/j.1467-2494.1998.177054.x
更新日期：1998-12-01 00:00:00
abstract：:Synopsis An historical reference is followed by a review of cosmetic colours' regulations based on the EEC Directive with particular reference to the U.K. Cosmetic Products Regulations and their effect on formulation. ...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1467-2494.1979.tb00217.x
更新日期：1979-08-01 00:00:00
abstract：:Skin moisturization is not only important for maintaining skin functional properties but also has great impact on the skin's aesthetic properties. The top layer of the skin, the stratum corneum (SC), plays a key role in protecting and preventing against external aggressions as well as in regulating water flux in and o...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1468-2494.2008.00428.x
更新日期：2008-02-01 00:00:00
abstract：:Synopsis The manufacturing of toiletries is a complex procedure and many process routes are possible for a given formulation. In the past, considerable attention has been given to the design of manufacturing equipment but there has been relatively little appreciation of the influence of physicochemical interactions du...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1467-2494.1980.tb00235.x
更新日期：1980-04-01 00:00:00
abstract：:Synopsis The dichlorophenyl-imidazoldioxolan elubiol is used for skin and hair care in subjects with oily skin or dandruff. A study was conducted in 14 men to evaluate by non-invasive methods the effect of long-term use of elubiol on the sebum output at the skin surface. Measures were made using the Sebumeter SM810 an...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1467-2494.1996.tb00152.x
更新日期：1996-10-01 00:00:00
abstract：:Synopsis An O/W/O multiple emulsion was formulated using almond oil as the inner phase and liquid paraffin as the outer phase. The properties of the formulation ingredients were explored: effect of the type of primary emulsifier, and the nature and concentration of the secondary emulsifier. The volume fraction of the ...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1467-2494.1994.tb00077.x
更新日期：1994-02-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to perform short-term sensory testing and instrumental (conductivity and rheological) characterization of a fast inverted oil-in-water (o/w) emulsion base, also known as a SWOP (Switch-Oil-Phase) emulsion, and reference o/w and water-in-oil (w/o) emulsion bases under various testing ...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/ics.12282
更新日期：2016-06-01 00:00:00
abstract：:Sweat and skin surface pH are critical parameters in determining the performance of antiperspirants. The mechanism of action, the so-called 'plug theory' first proposed by Reller and Luedders, involves the expression of eccrine sweat onto the surface of the skin into which the solid antiperspirant salts, typically an ...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1046/j.1467-2494.2001.00092.x
更新日期：2001-08-01 00:00:00
abstract：OBJECTIVE:To evaluate wrinkle improvement and safety of a novel cosmetic dissolving microneedle patches loaded with two active compounds with different hydrophilicities, namely ascorbic acid and retinyl retinoate. METHODS:Clinical studies were performed on 24 Korean women for 12 weeks. Patients in group A were treated...
journal_title：International journal of cosmetic science
pub_type： 杂志文章,随机对照试验
doi：10.1111/ics.12115
更新日期：2014-06-01 00:00:00
abstract：:The aim of this work was to investigate the effects of 1,18-octadecen-9-dioic acid (dioic acid) and a Rumex occidentalis extract complex for their skin-lightening action in an Indian population. Prior to the clinical study, the efficacy of dioic as an inhibitor of melanogenesis was confirmed on dark-pigmented human me...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/ics.12002
更新日期：2012-12-01 00:00:00
abstract：:Cutaneous irritation is a stereotyped response of the skin to any physical or chemical insult. Its main manifestations encompass inflammatory erythema and an alteration of the cutaneous microrelief showing increased roughness, dehydration and erratic desquamation. Several instrumental methods can indirectly assess the...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1046/j.1467-2494.2003.00170.x
更新日期：2003-04-01 00:00:00
abstract：:Kajal and surma are eye cosmetics extensively used in Indian subcontinent. Kajal is prepared by burning of vegetable oil and butter oil while surma by grinding of the stones. High performance liquid chromatography and gas chromatography-mass spectrometry instruments were used for quantification and confirmation of 16 ...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1468-2494.2009.00497.x
更新日期：2009-06-01 00:00:00
abstract：:Solid lipid nanoparticle (SLN) was regarded as new topical delivery systems for pharmaceutical and cosmetic active ingredients. The purpose of this study is to develop carrier systems for organic and inorganic sunscreens based on a matrix composed of carnauba wax and decyl oleate. Formulae (F1-F7) were prepared using ...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/j.1468-2494.2010.00598.x
更新日期：2011-02-01 00:00:00
abstract：OBJECTIVES:Hyaluronan (HA), an important constituent of extracellular matrix in the skin, has many biological activities such as hydration that contributes to firmness and bounciness of the skin. We have reported that reduction in HA in the papillary dermis and over-expression of HYBID (HYaluronan Binding protein Invol...
journal_title：International journal of cosmetic science
pub_type： 杂志文章,随机对照试验
doi：10.1111/ics.12505
更新日期：2019-02-01 00:00:00
abstract：:Many studies have presented stress-strain relationship of human hair, but most of them have been based on an engineering stress-strain curve, which is not a true representation of stress-strain behaviour. In this study, a more accurate 'true' stress-strain curve of human hair was determined by applying optical techniq...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/ics.12031
更新日期：2013-06-01 00:00:00
abstract：:Hexamidine (HEX) has been used as a preservative in topical preparations since the 1950s. A number of studies also indicate that the molecule plays a beneficial role in skin homoeostasis. In this review, we describe the physicochemical properties of hexamidine diisethionate (HEX D) and the corresponding hydrochloride ...
journal_title：International journal of cosmetic science
pub_type： 杂志文章,评审
doi：10.1111/ics.12392
更新日期：2017-08-01 00:00:00
abstract：BACKGROUND:Cosmetics are products used over long periods by the public, and their safety is very important. Several types of human tests are used widely for the evaluation of cosmetics including single patch tests, in-use tests, human repeated insult patch test (HRIPT). However, there is no clear and well-defined publi...
journal_title：International journal of cosmetic science
pub_type： 杂志文章
doi：10.1111/ics.12095
更新日期：2014-02-01 00:00:00
