Results 11 to 20 of about 317,976 (273)
A química e toxicidade dos corantes de cabelo
Química Nova, 2014 The market for hair dye involves a growing range of products, which requires greater understanding of hair properties, mechanisms of action and color development.
Ricardo A. G. de Oliveira +5 more
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Novel near-infrared absorbing dyes [PDF]
, 1990 New near-infrared absorbing donor-acceptor chromophores have been investigated by varying the electron donating and accepting strength of the two halves of the molecule within wide limits. The dihydroperimidine, perimidine, Michler's ethylene and 1-decyl-
Corns, Stephen Nigel
core +7 more sources
Method to analyse and quantify the propensity of hair dyes to desorb from human hair fibre [PDF]
HeliyonBackground: The use of hair dyes to alter the aesthetics of human hair is a very popular consumer habit. Dyes and their precursors used in hair coloration have been investigated for safety both in terms of exposure of consumers during the dyeing process,
Kristina Hetherington +11 more
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Occupational exposure to allergens in oxidative hair dyes
Zdravniški Vestnik, 2013 Oxidative hair dyes are the most important hair dying products. Hairdressers are exposed to the allergens found in oxidative hair dyes during the process of applying dyes to the hair, when cutting freshly dyed hair, or as a consequence of prior ...
Polona Zaletel +2 more
doaj +1 more source
New extended methine dyes for application in laser technology [PDF]
, 1993 Based on the known reverse saturable absorption properties of certain coumarin and long chain polymethine dyes, the synthesis of new related structures was undertaken in order to examine the relationships between structure and RSA activity. It was hoped
Millar, Valerie
core +7 more sources
Spectroscopy, Electrochemistry and Photochemistry of Phenylazonaphthalene Dyes [PDF]
, 2010 The spectroscopy, electrochemistry and photochemistry of seven 2-(4-R-phenylazo)naphthalene-4,8-disulfonate dyes (R-Span dyes), were studied to report on their structure and reactivity in water.
Bullivant, Chad Quentin
core +7 more sources
Does Hair Dye Use Increase the Risk of Breast Cancer? A Population-Based Case-Control Study of Finnish Women. [PDF]
PLoS ONE, 2015 Role of hair dyes in the etiology of breast cancer has occasionally raised concern but previous research has concluded with mixed results. Remnants of prohibited aromatic amines have been found in many hair dye products, and elevated levels of DNA ...
Sanna Heikkinen +4 more
doaj +1 more source
Ecotoxicology and Environmental Safety, 2021 Various cosmetic hair manipulations are known to interfere with the drug of abuse concentrations in hair. It is important to know the effects of cosmetic hair treatments as they may cause false-positive or false-negative results.
XinYu He, Ji Fen Wang, Yanyan Wang
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BMJ, 2007 Its incidence is rising, as more and younger people dye their hair For more than 100 years para-phenylenediamine (PPD) and other related members of the aromatic amine family have been the main agents used in permanent hair dyes, and more than two thirds of hair dyes currently contain PPD.
John P, McFadden +5 more
openaire +2 more sources
Molecules, 2019 Hair-coloring products include permanent, semi-permanent and temporary dyes that vary by chemical formulation and are distinguished mainly by how long they last.
Bing Liu +6 more
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