research Human Skin Color: Origin, Variation, and Significance
Human skin and hair color variation is mainly due to melanin produced by a few genes, with melanin protecting against sun damage.
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research Hair
Hair analysis can detect drug use but is costly and interpretation is complex.
research Melanogenesis-Promoting Effect of Cirsium Japonicum Flower Extract In Vitro and Ex Vivo
Cirsium japonicum flower extract increases melanin production and could help treat depigmentation conditions.
research Transgenic Endothelin 3 Regulates Murine Pigment Production and Coat Color
The gene Endothelin 3 makes mice's fur darker by increasing pigment cells and pigment levels.
research Pull Test and Trichogram
Physical exams are important in hair loss diagnosis, considering cosmetic history, systemic diseases, and classifying alopecia types.
research A Review of the Etiologies, Clinical Characteristics, and Treatment of Canities
Gray hair is caused by reduced melanin production or transfer issues, linked to aging and possibly health conditions, with treatments focusing on color camouflage.
research Growth Inhibition and Transient Temperature Measurement of Laser-Irradiated Hair Fibers and Follicles
Laser treatment can inhibit hair growth and different hair colors reach different temperatures when lasered.
research How Different Is Human Hair? A Critical Appraisal of Global Hair Fibre Characteristics and Properties Towards Defining a More Relevant Framework for Hair Type Classification
Human hair varies widely and should be classified by curl type rather than race.
research Sox2 in the Dermal Papilla Regulates Hair Follicle Pigmentation
Sox2 controls hair color by affecting pigment production in hair follicles.
research Piecing Together the Pigment-Type Switching Puzzle
The document concludes that MGRN1 affects mouse fur color by interfering with a receptor's signaling, but its full role in the body is still unknown.
research Circulating Testosterone and Feather-Gene Expression of Receptors and Metabolic Enzymes in Relation to Melanin-Based Coloration in the Barn Owl
Barn owls with smaller black spots have higher testosterone levels, which might be due to genetic effects on hormone regulation rather than hormone effects on coloration.
research Hair Follicle Melanogenesis Reflected in Hair Pigmentation as a Developmental Factor in Alopecia Areata
Hair color is not a risk factor for developing alopecia areata.
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 Decreased Benzothiazole-Type Pheomelanin in Regrown Brown Hair in Alopecia Areata
The girl's regrown brown hair had less of certain pigments than her original black hair.
research 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 The Potential Impact of Melanosomal pH and Metabolism on Melanoma
Melanin may help melanoma cells grow by aiding their metabolism.
research Scalp Hair Repigmentation in the Penumbral Region of Radiotherapy: A Case Series
Radiotherapy can cause rare changes in hair color, which should be discussed with patients.
research Metal Chelation Assisted Deposition of Polydopamine on Human Hair: A Ready-to-Use Eumelanin-Based Hair Dyeing Methodology
Polydopamine is a safe, effective, and permanent hair dye that turns gray hair black in one hour.
research Hair Follicle Pigmentation: Mechanisms and Factors Influencing Melanin Production
Hair color is determined by melanin produced and transferred in hair follicles.
research Research on Hair Bleach That Causes Less Hair Damage and Smells Less Pungent Than Ammonium Hydroxide
AMPD is a better and less damaging alternative to ammonium hydroxide for hair bleaching.
research Photobiomodulation for Skin Pigmentation Disorders: A Dual-Function Treatment
Light therapy is effective and safe for treating skin color disorders like vitiligo and dark spots.
research Hair Cycle and Hair Pigmentation: Dynamic Interactions and Changes Associated with Aging
As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.
research What Factors Play a Role in Unhealthy Hair?
Environmental, chemical, mechanical, and personal health factors can all damage hair and contribute to hair loss or changes in hair quality.
research Increased 25(OH)D3 Level in Redheaded People: Could Redheadedness Be an Adaptation to Temperate Climate?
Redheaded people may have evolved to efficiently make vitamin D in areas with less sunlight.
research Hair: Overview
The document explains how hair is studied in forensics to identify its source and its role in criminal investigations.
research Melanoma: Genetic Abnormalities, Tumor Progression, Clonal Evolution, And Tumor-Initiating Cells
Melanoma's complexity requires personalized treatments due to key genetic mutations and tumor-initiating cells.
research N-(3,5-Dimethylphenyl)-3-Methoxybenzamide (A3B5) Targets TRP-2 and Inhibits Melanogenesis and Melanoma Growth
A3B5 can reduce skin pigmentation and slow melanoma growth.
research Montagna Symposium 2013: Light and Skin - How Light Sustains, Damages, Treats, Images, and Modifies Skin Biology
Light affects skin health, aging, and cancer risk, and new light-based treatments and imaging are promising for skin care.
research RGB Video Microscopic System for In Vitro Monitoring of Optical Properties of Hair Shaft and Follicle
The system helps monitor hair properties using RGB video microscopy.
research Study of Quality of Life in Patients with Premature Graying of Hair in Western Indian Population
Premature graying of hair significantly harms psychological and social wellbeing.