research Changes in the mechanical properties of human hair under various conditions
Hair coloring and chlorine change hair strength differently.
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360-390 / 1000+ resultsresearch Impact of ultraviolet radiation‐induced damage to hair fiber integrity: A multi‐technique physicochemical characterization of surface and cortex properties
This study investigates the impact of ultraviolet (UV) radiation on hair fiber integrity, comparing it to the effects of bleaching. It simulates solar radiation damage over a Brazilian summer and finds that UV exposure causes cuticular damage similar to bleaching, with increased cystic component oxidation and decreased hydrophobicity. After 192 hours of UV exposure, hair shows significant mechanical degradation, with reduced force at 20% elongation and elongation at break, indicating more pronounced damage than chemical oxidation alone. However, the structural protein degradation from double bleaching is more severe than that from UV radiation, despite comparable enthalpy changes after 192 hours of UV exposure.
research Copper and calcium uptake in colored hair
Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.
research Comparison of the acute ultraviolet photoresponse in congenic albino hairless C57BL /6J mice relative to outbred SKH 1 hairless mice
B6.Cg-Tyr c−2J Hr hr /J mice have a stronger delayed sunburn reaction and are good for UV research.
research Chromatographic method for clobetasol propionate determination in hair follicles and in different skin layers
A new method accurately measures clobetasol propionate in hair and skin.
research KELAYAKAN DAUN BAYAM HIJAU (AMARANTHUS HYBRIDUS L) SEBAGAI HAIR TONIC RAMBUT RONTOK
Green spinach leaves can be an effective and liked hair tonic for hair loss.
research Optical evaluation of internal damage to human hair based on second near‐infrared window polarization microscopy
A new method using near-infrared light can effectively detect and analyze internal hair damage.
research Assessing the role of probiotics for the enhancement of soil quality under cover crops
Probiotics improve soil quality and plant root growth but not auxin content.
research Transcriptomic profiling of Arabidopsis Thaliana responses to Stutzerimonas stutzeri, chlorella vulgaris, and mixed consortium inoculation under salt stress
research In-Situ Imaging Mass Spectrometry Analysis of Melanin Granules in the Human Hair Shaft
research Application of XANES profiles to X-ray spectromicroscopy for biomedical specimens: Part II. Mapping oxidation state of cysteine in human hair
Perming and bleaching damage hair differently, with bleached hair having more cysteic acid in the cuticle.
research Formulation And Evaluation Of Herbal Hair Dye Using Platycladus Orientalis For Preventing Hair Loss”
The herbal hair dye using Platycladus orientalis effectively prevents hair loss, covers gray, and is gentle and safe for all ages.
research Effect of equilibrium pH on the structure and properties of bleach‐damaged human hair fibers
Hair's structure and properties change with pH; acidic pH maintains strength and less swelling, while alkaline pH increases water content and swelling.
research Formulation and Evaluation of Herbal Hair Dye: An Ecofriendly Process
The herbal hair dye is a safe and eco-friendly alternative to conventional dyes.
research Penetration and distribution of three lipophilic probes in vitro in human skin focusing on the hair follicle
Medium lipophilic substances penetrate skin best, and adding ethanol can increase delivery to hair follicles.
research 576 A preliminary study of melanogenic markers in the differentiation of the human hair follicle melanin unit
The study found markers indicating that cells responsible for hair color are differentiating in specific areas of the hair follicle.
research Exploring the potential effect and mechanisms of protocatechuic acid on human hair follicle melanocytes
Protocatechuic acid can reduce melanin production and boost antioxidant activity in hair follicles.
research Data for the article "Increased calcidiol level in redhaired people: Could redheadedness be an adaptation to temperate climate?"
Redheaded people have higher levels of vitamin D precursor, suggesting their hair color may be an adaptation to low sunlight areas.
research Formulation Development, Pharmacological Evaluation, and Characterization of Eclipta alba Phytosomes
Eclipta alba phytosomes improve bioavailability and therapeutic effects.
research My Hair Guides My Bioelement Dietary Requirements
Hair analysis can effectively assess nutritional status.
research Anthocyanins: Natural Pigments with Multifaceted Health Benefits for Humans
Anthocyanins in berries and purple veggies offer health benefits but need better processing for full use.
research Controle de qualidade e análise sensorial em voluntários de xampu esfoliante com extrato hidroalcoólico de Capsicum frutescens L. (Solanaceae)
The chili pepper shampoo was safe and well-liked by volunteers.
research High spatial resolution study of human skin using synchrotron infrared microscopy: application to the penetration of external agents
External agents penetrate skin more easily in areas with fewer lipids, especially through hair follicles.
research Hypoxia improves hair inductivity of dermal papilla cells via nuclearNADPH oxidase 4‐mediated reactive oxygen species generation'
Low oxygen levels can make hair-growing cells better at growing hair through a process involving reactive oxygen species.
research Study of colouring effect of herbal hair formulations on graying hair
A herbal mix, especially with Jatamansi, effectively darkens gray hair.
research Androgenetic alopecia: Role of the phototrichogram
Phototrichogram helps assess hair loss severity.
research Recent advances in X-ray microanalysis in dermatology.
Trace elements like calcium, iron, and zinc are unevenly distributed in hair, while sulfur is even, and increased phosphorus and potassium levels are linked to skin reactions.
research Multicolor Hair Dyeing with Biocompatible Dark Polyphenol Complex-Integrated Shampoo with Reactive Oxygen Species Scavenging Activity
The new hair-dyeing shampoo is safe, colors hair evenly, and strengthens it.
research Physiological Doses of Red Light Induce IL ‐4 Release in Cocultures between Human Keratinocytes and Immune Cells
Red light at 627 nm can safely trigger IL-4 release in skin cells, potentially helping treat inflammatory skin conditions.
research Analysis of Cysteine on the Surface of Hair Fibers with Spectrofluorescence
Cysteine formation on hair indicates damage, best detected at pH 4.5.