research Evidence for Various Calcium Sites in Human Hair Shaft Revealed by Sub-Micrometer X-Ray Fluorescence
The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.
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research Abnormal Inner Root Sheath of the Hair Follicle in the Loose Anagen Hair Syndrome: An Ultrastructural Study
Loose anagen hair syndrome is caused by structural abnormalities in the hair follicle's inner root sheath.
research Significant Damage of the Skin and Hair Following Hair Bleaching
Hair bleaching causes significant damage to hair and skin.
research The Physical and Chemical Disruption of Human Hair After Bleaching – Studies by Transmission Electron Microscopy and Redox Proteomics
Bleaching hair causes severe structural and chemical damage, including protein loss and oxidation.
research Variation in Human Hair Ultrastructure Among Three Biogeographic Populations
Different populations have distinct hair structures related to their ancestry.
research Photochemical Alterations in Human Hair: Artificial Irradiation and Investigations of Hair Proteins
Melanin in black hair protects it from sun damage better than light-brown hair.
research Analysis of Heterogeneous Reaction Between Reducing Agents and Keratin Fibers Using Raman Spectroscopy and Microspectrophotometry
The study found that thioglycolic acid breaks down hair bonds more consistently than l-cysteine, which is less damaging to hair.
research Reactive Keratin Derivatives: A Promising Strategy for Covalent Binding to Hair
Modified keratin binds better to hair, especially bleached hair.
research Chapter 4: Cytomechanics of Hair
Hair's strength and flexibility come from its protein structure and molecular interactions.
research Distribution of Glycolipid and Unsaturated Fatty Acids in Human Hair
Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
research Morphology and Ultrastructure of Antler Velvet Hair and Body Hair from Red Deer (Cervus elaphus)
Antler velvet hair and body hair of red deer have different structures that help with protection and insulation.
research Investigation of Hair Shaft in Seborrheic Dermatitis Using Atomic Force Microscopy
Hair from people with seborrheic dermatitis is thicker scaled, more damaged, and thinner than healthy hair, and atomic force microscopy can help monitor the condition.
research The G60S Connexin43 Mutant Regulates Hair Growth and Hair Fiber Morphology in a Mouse Model of Human Oculodentodigital Dysplasia
The G60S Connexin43 mutation causes hair growth issues and poor hair quality in mice, similar to human ODDD patients.
research Discrete Nanoscale Distribution of Hair Lipids Fails to Provide Humidity Resistance
Hair lipids do not protect against humidity.
research The Cell Membrane Complex: Three Related but Different Cellular Cohesion Components of Mammalian Hair Fibers
The cell membrane complex in mammalian hair has three distinct types with different structures and chemical properties.
research Extractable Substances from Human Hair: A Discussion About the Origin of the Holes
Holes in mature hair are likely caused by the removal of substances during hair care.
research Histochemical Observation of the Cell Membrane Complex of Hair
The Cell Membrane Complex in hair has both water-attracting and water-repelling layers.
research Chemical And Physical Treatments Damage Caucasian And Afro-Ethnic Hair Fibre: Analytical And Image Assays
Chemical and physical treatments like bleaching, dyeing, and UV radiation damage both Caucasian and Afro-ethnic hair.
research An Ultrastructural Study on Corkscrew Hairs and Cigarette-Ash-Shaped Hairs Observed by Dermoscopy of Tinea Capitis
Corkscrew and cigarette-ash-shaped hairs in tinea capitis are caused by internal hair degradation and external resistance.
research The Cracking of Human Hair Cuticles by Cyclical Thermal Stresses
Frequent blow-drying causes cracks and breakage in hair cuticles.
research Progenitor-Cell-Enriched Micrografts as a Novel Option for the Management of Androgenetic Alopecia
Micrografts promote hair growth in androgenetic alopecia treatment.
research Heat-Damaged Evaluation of Virgin Hair
Heat damages hair, with Asian hair losing more protein than Caucasian hair.
research Charge Density Alterations in Human Hair Fibers: An Investigation Using Electrostatic Force Microscopy
The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.
research The Structural Implications of Water Hardness Metal Uptake by Human Hair
Human hair absorbs calcium and magnesium from tap water, affecting its structure and styling properties.
research Copper and Calcium Uptake in Colored Hair
Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.
research Lipid Losses and Barrier Function Modifications of the Brown-to-White Hair Transition
White hair has less lipid content and absorbs water differently than brown hair.
research Microscopical Characterization of Known Postmortem Root Bands Using Light and Scanning Electron Microscopy
The research found that postmortem root bands in hair are likely caused by the breakdown of a specific part of the hair's inner structure after death.
research Understanding Breakage in Curly Hair
Curly hair breaks due to mechanical damage and environmental factors, not chemical makeup, and needs ongoing care to prevent breakage.
research Qualitative Investigation of Fresh Human Scalp Hair with Full-Field Optical Coherence Tomography
Melanin density affects hair color, and this method can help in cosmetic assessments and diagnosing hair diseases.
research Elucidating Penetration Pathways Into the Hair Fiber Using Novel Microscopic Techniques
The conclusion is that substances can penetrate hair fibers through multiple pathways, including both the cell membrane complex and the non-keratinous parts.