research Tryptophan in Human Hair: Correlation with Pigmentation
Men have more tryptophan in their hair than women, and it increases with age and is higher in darker and grey or white hair.
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720-750 / 1000+ resultsresearch 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 Immunopathology of the Human Hair Follicle
The document concludes that immune system abnormalities cause alopecia areata, but the exact process is still not completely understood.
research The Cracking of Human Hair Cuticles by Cyclical Thermal Stresses
Frequent blow-drying causes cracks and breakage in hair cuticles.
research Towards Expansion of Human Hair Follicle Stem Cells In Vitro
Scientists can grow human hair follicle stem cells in a lab without changing their nature, which could help treat hair loss.
research Overexpression of Alkaline Phosphatase Improves the Hair-Inductive Capacity of Cultured Human Dermal Papilla Spheres
Increasing alkaline phosphatase in human skin cells helps to grow more hair.
research Topically Applied Nicotinamide Inhibits Human Hair Follicle Growth Ex Vivo
Nicotinamide applied to the scalp can slow down hair growth.
research Interferon Beta Secreted from Human Hair Dermal Papilla Cells Inhibits the Growth of Outer Root Sheath Cells Cultured in Vitro
Interferon β from hair cells stops the growth of other hair cells.
research An In Vitro Model for the Study of Human Hair Growth
Researchers created a lab model to study human hair growth, showing it can grow and self-regulate outside the body.
research In Vitro Assembly Properties of Human Type I and II Hair Keratins
Different combinations of human hair keratins affect how hair fibers form.
research Identification of Androgen-Regulated Genes in SV40-Transformed Human Hair Dermal Papilla Cells
Hsc70 protein may influence hair growth by responding to androgens.
research Systems Approach to Human Hair Fibers: Interdependence Between Physical, Mechanical, Biochemical, and Geometric Properties of Natural Healthy Hair
Hair properties are interconnected; a comprehensive, cross-disciplinary approach is essential for understanding hair behavior.
research Extracellular Proteoglycan Decorin Maintains Human Hair Follicle Stem Cells
Decorin helps keep hair follicle stem cells and may prevent age-related hair loss.
research Kojyl Cinnamate Ester Derivatives Increase Adiponectin Expression and Stimulate Adiponectin-Induced Hair Growth Factors in Human Dermal Papilla Cells
Kojyl cinnamate ester derivatives can promote hair growth by increasing adiponectin production in fat tissues.
research New Insights Into Human Hair: SAXS, SEM, TEM, and EDX for Alopecia Areata Investigations
Alopecia Areata causes significant structural and compositional changes in hair.
research Substance P Prolongs Human Hair Growth In Vitro
Substance P helps hair grow longer and faster.
research Thymic Peptides Differentially Modulate Human Hair Follicle Growth
Some thymic peptides can increase human hair growth, while others may inhibit it.
research Apoptosis Coordinates With Proliferation And Differentiation During Human Hair Follicle Morphogenesis
Apoptosis helps shape hair growth and prepares the skin for hair to emerge.
research Photodegradation of Human Hair: A Microscopy Study
UV radiation significantly damages hair, especially with humidity, making it more vulnerable to further damage.
research Forensic Chemical Study on Human Hair: Identification of Hair Spray and Hair Growth Promoter Brands by Components Remaining on Human Hair
Chemical analysis of hair products on human hair can help identify specific brands and link suspects to victims.
research Anagen Hair Follicles Transplanted Into Mature Human Scars Remodel Fibrotic Tissue
Transplanting growing hair follicles into scars can help regenerate and improve scar tissue.
research Effect of Intense Pulsed Light Treatment on Human Skin In Vitro: Analysis of Immediate Effects on Dermal Papillae and Hair Follicle Stem Cells
Intense pulsed light treatment mainly damages pigmented hair parts but spares stem cells, allowing hair to regrow.
research Conditioned Media Obtained from Human Outer Root Sheath Follicular Keratinocyte Culture Activates Signalling Pathways That Contribute to Maintenance of Hair-Inducing Capacity and Increases Trichogenicity of Cultured Dermal Cells
The substance from human hair root cells can help maintain hair growth and make skin cells more capable of growing hair.
research Runx1 Transcription Factor Is Involved in the Regulation of KAP5 Gene Expression in Human Hair Follicles
Runx1 helps control the KAP5 gene in human hair follicles.
research Association Between Human Hair Loss and the Expression Levels of Nucleolin, Nucleophosmin, and UBTF Genes
Hair loss is significantly linked to lower levels of certain genes in hair follicles.
research Platelet Factor 4 Inhibits Human Hair Follicle Growth and Promotes Androgen Receptor Expression in Human Dermal Papilla Cells
Platelet factor 4 slows down hair growth and could make hair loss treatments more effective if removed.
research Stiffness of Human Hair Correlates with the Fractions of Cortical Cell Types
Hair stiffness is higher when it has more para-like cortical cells.
research Internal Structure Changes in Bleached Black Human Hair Resulting from Chemical Treatments: A Raman Spectroscopic Investigation
Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.
research Comparison of Damage to Human Hair Fibers Caused by Monoethanolamine- and Ammonia-Based Hair Colorants
Monoethanolamine-based hair colorants can cause more damage to hair than ammonia-based ones.
research Comparison of Quality Performance of Human Hair Types with Herbal Oils by Analysis Techniques
Grape seed oil improved hair quality the most, followed by rosehip and safflower seed oils, and reduced damage from shampoo.