research Segmental Hair Analysis - A Retrospective Testosterone Diary?
Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
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90-120 / 1000+ results research The Effects of Temperature, pH, and Moisture Exposure on Human Hair
High temperatures, acidic conditions, and too much coconut oil damage hair, while a pH of 5 to 7 keeps it healthy.
research Adhesion Failure of External Hair Cuticles Caused by Prussian Blue: Possible Electrochemical Roles of Sulfur and Cystine
Prussian Blue causes hair cuticles to detach, weakening the hair.
research Proceedings of the International Congress 'Science, Information, Spirit' 2007, pp 28-35: Electro Photonic Analysis of Hair and Non-Hair Fibers and Investigation of Different Hair Treatments
Hair properties change under electromagnetic fields and are influenced by individual characteristics and the environment.
research Cross-Linked Features of Mouse Pelage Hair Resistant to Detergent Extraction
Two mouse mutants have defective hair cuticle cross-linking.
research Nanotribological Characterization of Human Hair and Skin Using Atomic Force Microscopy
The research improved understanding of hair and skin properties across different ethnicities and conditions.
research Ozone Interactions with Human Hair: Ozone Uptake Rates and Product Formation
Ozone reacts more with unwashed hair, producing compounds due to scalp oils, which could lower ozone exposure but increase exposure to reaction products.
research In Situ Tensile Deformation Characterization of Human Hair with Atomic Force Microscopy
AFM helped show how hair changes under tension and the effects of damage and conditioner.
research Improving Stable Isotopic Interpretations Made From Human Hair Through Reduction of Growth Cycle Error
The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.
research Issues About Axial Diffusion During Segmental Hair Analysis
Wait 4-5 weeks after drug use before hair testing and cut hair into three segments to confirm single drug exposure.
research Effect of Constant-Release Melatonin Implants and Prolonged Exposure to a Long Day Photoperiod on Prolactin Secretion and Hair Growth in Mouflon (Ovis Gmelini Musimon)
Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.
research Red Ginseng Extract Promotes Hair Growth in Cultured Human Hair Follicles
Red Ginseng Extract may help human hair grow by activating growth pathways and blocking negative effects of certain hormones.
research Hair Greying Is Associated With Active Hair Growth
White hair grows thicker and faster than black hair due to higher activity of growth-related genes and proteins.
research Segmental Hair Analysis for 11-Nor-9-Tetrahydrocannabinol-9-Carboxylic Acid and the Patterns of Cannabis Use
THCCOOH levels in hair decrease from root to tip and don't match well with self-reported cannabis use.
research Polarization Microscopy of Hair in Acrodermatitis Enteropathica
Zinc therapy improved hair health in a girl with acrodermatitis enteropathica.
research Analysis of Hair Cortisol as an Indicator of Chronic Stress in Pigs in Two Different Farrowing Systems
Pigs in farrowing crates and loose-housing systems showed no difference in chronic stress levels as measured by hair cortisol.
research Cross-Linked Features of Mouse Pelage Hair Resistant to Detergent Extraction
Some mutant mice have hair with abnormal cross-linking, mainly in the cuticle, not affecting other hair parts.
research Increased Polyamine Concentrations in the Hair of Cancer Patients
Hair can be used to measure cancer-related chemicals noninvasively.
research Experimental Investigations on Hair Fibers as Diffusion Bridges and Opiates as Solutes in Solution
Hair can absorb and transfer opiates when soaked in water, with damaged hair absorbing more.
research Single-Cell Transcriptomics Reveals Lineage Trajectory of Human Scalp Hair Follicle and Informs Mechanisms of Hair Graying
The study found new details about human hair growth and suggests that preventing a specific biological pathway could potentially treat hair graying.
research Age-Related Changes in Endogenous Glucocorticoids, Gonadal Steroids, Endocannabinoids, and Their Ratios in Plasma and Hair from Male C57BL/6 Mice
Male C57BL/6 mice show age-related fluctuations in certain hormones and their ratios in both blood and hair.
research Use of Hair Cortisol as a Biomarker for Chronic Stress in Pregnancy
Hair cortisol could be a marker for chronic stress in pregnancy, but depression affects cortisol levels differently.
research Analyzing the Laser-Light Reflection from Human Hair Fibers: Deriving a Measure of Hair Luster
The conclusion is that a new method to measure hair shine was confirmed to match people's visual assessments.
research Unique Hair Properties That Emerge from Combinations of Multiple Races
Mixed-race individuals have hair with varied shapes and more root damage.
research Hair Steroid Profiling Reveals Racial Differences in Male Pattern Baldness Between Korean and Caucasian Populations
Korean and Caucasian men with male pattern baldness have different hair steroid levels.
research Human Hair Outer Root Sheath Cells and Platelet-Lysis Exosomes Promote Hair Inductivity of Dermal Papilla Cells
HHORSC exosomes and PL improve hair growth treatment outcomes.
research Examination of the Elemental Composition of Hair in Cholelithiasis, Kidney Stones, Hypertension, and Diabetes by Scanning Electron Microscopy and Energy Dispersive Spectrometry
The study did not conclude whether hair can reliably indicate kidney stones, cholelithiasis, hypertension, or diabetes.
research Caffeine Content in Newborn Hair Correlates with Maternal Dietary Intake
Newborns' hair shows how much caffeine their mothers drank during pregnancy.
research Scanning Electron Microscopy Approach for Evaluation of Hair Dyed with Lawsonia Inermis Powder: In Vitro Study
Henna dye improves hair cuticle and thickness but effects vary by hair type and health.
research Protective Effect of Conditioner Agents on Hair Treated with Oxidative Hair Dye
Conditioners in hair dye reduce damage and improve combability.