research Histomorphological and Quantitative Characteristics of Black and Gray Human Scalp Hair
Gray hair has more continuous medullation and a higher medullary diameter than black hair.
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30-60 / 1000+ resultsresearch Age- and Sex-Dependence of Five Major Elements in the Development of Human Scalp Hair
Calcium and magnesium in hair increase with age and are higher in adult women.
research Enrichment of Specific Hair Follicle-Associated Cell Populations in Plucked Hairs Offers an Opportunity to Study Gene Expression Underlying Hair Traits
Plucked hairs can be used instead of skin biopsies to study hair traits because they contain specific cells related to hair.
research Effect of Cosmetic Hair Treatment and Natural Hair Color on Hair Testosterone Concentrations
Cosmetic hair treatments can increase hair testosterone levels, while natural hair color does not affect it.
research Evaluation of Short-Term Hair Follicle Storage Conditions for Maintenance of RNA Integrity
Hair follicles can be kept in RNAlater® at cool or room temperature for a week without harming RNA quality.
research Human Hair Keratin Network And Curvature
Curly hair shape is due to uneven growth patterns in the hair follicle.
research Trichoscopy
Trichoscopy is a non-invasive way to diagnose hair and scalp problems without needing hair samples.
research Development And Validation Of Hair Specimen Collection Methods Among Extremely Short-Length Afro-Textured Hair
Collecting hair from all scalp sections works as well as the standard method for cortisol analysis.
research Biocompatibility Of Kaps-Depleted Residual Hair
KAP-depleted hair causes less immune response and is more biocompatible for implants.
research Investigation by Imaging Mass Spectrometry of Biomarker Candidates for Aging in the Hair Cortex
Certain molecules in hair change with age and could be used for cosmetic treatments.
research Testosterone-Like Immunoreactivity in Hair Measured in Minute Sample Amounts: A Competitive Radioimmunoassay with an Adequate Limit of Detection
The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.
research Towards Best Practice in Hair Metabolomic Studies: Systematic Investigation on the Impact of Hair Length and Color
Hair color and length affect metabolite profiles in hair, so they should be considered in hair analysis.
research No Difference in the Proteome of Racially and Geometrically Classified Scalp Hair Samples from a South African Cohort: Preliminary Findings
Hair protein composition is similar across different races and shapes.
research Alterations in Pattern Baldness According to Sex: Hair Metabolomics Approach
Hair loss causes differ between men and women due to changes in hormone levels and inflammation-related pathways.
research The Validation of Estradiol Extraction and Analysis from Hair
Hair can reliably measure average estradiol levels over months in humans and monkeys.
research Assessing the Efficacy of Mesotherapy Products: Ultra Exo Booster and Ultra S Line Plus in Hair Growth: An Ex Vivo Study
The products significantly promote hair growth and maintain hair bulb health.
research Enzymatic Crosslinking of Amino Acids Improves the Repair Effect of Keratin on Hair Fiber
Using enzymes to link proteins makes hair repair treatments more effective and long-lasting.
research The Effect of Ceramide-Based Essence Cream for the Damaged Hair Shaft
Ceramide-based essence cream improves damaged hair.
research Human Hair Shaft Proteomic Profiling: Individual Differences, Site Specificity, and Cuticle Analysis
The research found that people's hair proteins vary by individual and body part, with some differences between ethnic groups, which could help in forensics.
research Incorporation of Isotopically Labeled Cocaine and Metabolites into Human Hair: Dose-Response Relationships
Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
research Nanomechanical Characterization of Human Hair Using Nanoindentation and SEM
Human hair's strength and flexibility vary by ethnicity, damage, and treatment.
research Correlation of Cortisol in 1-Cm Hair Segment with Salivary Cortisol in Humans: Hair Cortisol as an Endogenous Biomarker
Hair cortisol levels can reflect salivary cortisol levels in humans.
research Hair Analysis for Veterinary Drug Monitoring in Livestock Production
Hair analysis is promising for detecting drug misuse in livestock.
research In Vitro and In Vivo Study of Dye Diffusion into Human Skin and Hair Follicles
Dyes can penetrate human skin and hair follicles up to 1.2 mm deep and the sebaceous gland can store dye; Indocyanine Green lotion was made for safe dyeing and monitoring.
research Human Hair Shaft Proteomic Profiling: Individual Differences, Site Specificity, And Cuticle Analysis
Human hair proteins vary by individual, body site, and ethnicity, useful for forensics.
research Stability of Opiates in Hair Fibers After Exposure to Cosmetic Treatment
Cosmetic treatments like bleaching and perming can greatly reduce opiate levels in hair, possibly leading to false-negative drug tests.
research Influence of Pigmentation on the Codeine Content of Hair Fibers in Guinea Pigs
Darker hair in guinea pigs holds more codeine than lighter hair.
research Sources of Variation in Hair Cortisol in Wild and Captive Non-Human Primates
Hair cortisol levels in primates are useful for stress assessment but vary by age, sex, species, and hair collection methods.
research Human Hair Growth Ex Vivo Is Correlated With In Vivo Hair Growth: Selective Categorization of Hair Follicles for More Reliable Hair Follicle Organ Culture
Choosing hair follicles at the same growth stage leads to more consistent hair growth experiments.
research Microbiome in the Hair Follicle of Androgenetic Alopecia Patients
Hair loss patients have different microbes in hair follicles, possibly affecting hair loss.