Results 31 to 40 of about 74,226 (261)

Application of phycocyanin from Arthrospira (Spirulina) platensis as a hair dye

open access: yesFrontiers in Marine Science, 2022
Almost all of the current hair dye products today contain synthetic chemicals which may cause allergic reactions in some users. Phycocyanin (PC), a non-toxic cyanobacterial pigment, has been used in the food and cosmetics sectors. There are however, been
Oranit Kraseasintra   +8 more
doaj   +1 more source

Mechanisms of impairment in hair and scalp induced by hair dyeing and perming and potential interventions

open access: yesFrontiers in Medicine, 2023
With the rapid growth of beauty and personal care industries, many hair-relevant products, hair dyes and hair perms in particular, are increasingly prevalent in both women and men, regardless of being young or old as they frequently change hair color or ...
Yongyu He   +15 more
doaj   +1 more source

Brightness and hue judgment of dyed hair color

open access: yesActa Psychologica
This study aims to investigate human hair color perception through two empirical studies in the context of colored hair. The preliminary study was intended to establish a numerical representation of perceptually meaningful brightness levels.
Boram Kim   +3 more
doaj   +1 more source

Usage and Behavioral Data of Consumers Using Hair Dye Products Containing 2-Methoxymethyl-P-Phenylenediamine

open access: yesCosmetics
The potent sensitizer PPD is considered a key sensitizer in hair dye contact allergy. Modification of its molecular structure to 2-methoxymethyl-p-phenylenediamine (ME-PPD) reduces its skin sensitizing potency.
Monika Kock   +6 more
doaj   +1 more source

Hair Melanins and Hair Color: Ultrastructural and Biochemical Aspects.

open access: yesJournal of Investigative Dermatology, 1993
The color variants of mammalian hair, including spotting and albinism, are the result of melanocyte activity and have been shown to be determined by the action of multiple genes, some of which operate through the milieu in which the pigment cell resides; others appear to act intracellularly to control the type of melanogenesis.
J P, Ortonne, G, Prota
openaire   +2 more sources

Circular RNA expression landscapes in myelodysplastic neoplasms: Associations with mutational signatures and disease progression

open access: yesMolecular Oncology, EarlyView.
In this explorative study, the abundance of circular RNA molecules in bone marrow stem cells was found to be elevated in patients with high‐risk myelodysplastic neoplasms, and to be associated with an increased risk of progression to acute myeloid leukemia.
Eileen Wedge   +17 more
wiley   +1 more source

Method to analyse and quantify the propensity of hair dyes to desorb from human hair fibre

open access: yesHeliyon
Background: 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
doaj   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

open access: yesMolecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen   +11 more
wiley   +1 more source

Influence of Hair Pigmentation on Cortisol Concentrations Under Heat Stress in Holstein, Montbéliarde, and Brown Swiss Dairy Cows

open access: yesRuminants
Background: Cortisol is known as the main hormone released during stress responses in cattle and has been used to assess various stressors, including heat stress.
Ebtissem Brahmi   +4 more
doaj   +1 more source

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