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.
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research A discourse on human hair fibers and reflections on the conservation of drug molecules
Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.
research Tyrosinase Depletion Prevents the Maturation of Melanosomes in the Mouse Hair Follicle
Reducing Tyrosinase prevents mature color pigment cells from forming in mouse hair.
research Oral zinc sulphate causes murine hair hypopigmentation and is a potent inhibitor of eumelanogenesisin vivo
Oral zinc sulphate reduces dark hair color in mice.
research Electron paramagnetic resonance (EPR) spectroscopy for investigating murine telogen skin after spontaneous or depilation-induced hair growth
EPR spectroscopy showed that spontaneous hair growth results in thicker skin and less pigmented hair than depilation-induced growth.
research A Comprehensive Review of Mammalian Pigmentation: Paving the Way for Innovative Hair Colour-Changing Cosmetics
Innovative cosmetics could safely change hair color by targeting biological hair pigmentation processes.
research Age-Related Hair Pigment Loss
Graying hair happens due to aging and might be delayed by new treatments.
research Melanocyte progenitor cells reside in human subcutaneous adipose tissue
Melanocyte progenitor cells are found in human fat tissue and can become mature melanocytes, which may help treat skin issues.
research Human Hair as a Natural Sun Protection Agent: A Quantitative Study
Hair acts as a significant natural sun barrier, with protection increasing based on hair density, thickness, and melanin presence.
research Hair Pigmentation: A Research Update
Hair color is determined by different melanins and changes with age.
research Biology of hair pigmentation and its role in premature canities
Early hair graying is often inherited and influenced by genetics, environment, and lifestyle, but treatment options are limited.
research HGF/SF Increases Number of Skin Melanocytes but Does Not Alter Quality or Quantity of Follicular Melanogenesis
HGF/SF increases skin melanocytes but doesn't change melanin type or amount.
research Efficacy of an agonist ofα-MSH, the palmitoyl tetrapeptide-20, in hair pigmentation
Palmitoyl tetrapeptide-20 may help reduce hair greying and increase melanin production.
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 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 In Vitro hair growth and hair tanning activities of mangosteen pericarp extract on hair dermal papilla cells
Mangosteen extract may help with hair growth and prevent graying.
research Role of Dermal Melanocytes in Cutaneous Pigmentation of Stasis Dermatitis
Melanin and melanocytes contribute to the brown pigmentation in stasis dermatitis.
research Melanocytes and Vitiligo (and Hair Graying)
Melanocytes produce melanin; their defects cause vitiligo and hair graying, with treatments available for vitiligo.
research The Hair Pigmentation Unit and Hair Graying
Hair color is due to active pigment cells in hair during growth.
research The Hair Pigmentation Unit and Hair Graying
Hair color is determined by melanins produced in hair cells.
research Potential Cosmetic Applications of Dihydroartemisinin
Dihydroartemisinin could be a versatile cosmetic ingredient but needs more research and development.
research Antioxidant, Black Hair, and Hair Growth Effect of Mixed Extracts of Nardostachys jatamansi, Ocimum basilicum and Crocus sativus
NOC-4 extract promotes black hair and hair growth effectively.
research Abstracts from the Symposium on the Pathophysiology of Hair Growth Organized by the Institute of Dermatology at the Royal Society of Medicine, 29 October 1987
The symposium concluded that hair growth involves complex processes, including the hair follicle life cycle, the role of the dermal papilla, hair strength, pigmentation, and the impact of diseases and treatments like minoxidil on hair and skin.
research Human hair follicles display a functional equivalent of the hypothalamic‐pituitary‐adrenal (HPA) axis and synthesize cortisol
Human hair follicles can produce cortisol like the body's stress response system.
research On the etiology of vitiligo and gray hair
Melanocytes are destroyed by factors needed for melanin production, causing vitiligo and gray hair.
research Melanocyte stem cells: a melanocyte reservoir in hair follicles for hair and skin pigmentation
Melanocyte stem cells in hair follicles are key for hair color and could help treat greying and pigment disorders.
research Induction of the hair growth phase in postnatal mice by localized transient expression of Sonic hedgehog
Activating the Sonic hedgehog gene in mice can start the hair growth phase.
research Formation and Structure of Human Hair
Human hair growth and structure are influenced by keratin proteins, genes, melanin, and lipids.
research Melanogenesis During the Anagen-Catagen-Telogen Transformation of the Murine Hair Cycle
Hair stops producing melanin as it transitions from the growth phase to the resting phase.
research Skin Pigmentation Types, Causes and Treatment—A Review
Skin pigmentation varies due to genetics, UV exposure, and drugs, with treatments available but requiring medical advice.