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This study found that Rhizoma Zingiberis Recens significantly activated hair growth in C57BL/6J mice by increasing melanin and promoting hair follicle growth.

This study observed that the extract of Ginseng Radix et Rhizoma promoted hair growth in C57BL/6J mice by enhancing local perfusion and inhibiting platelet aggregation.

This article discusses pigmentation disorders in veterinary dermatology, focusing on the role of melanogenic pigmentation, and reports no new research results.

This study concluded that THC and THCA incorporate into hair by a mechanism independent of hair pigmentation, likely influenced by indirect deposition via sebum and skin.

This study found that while there are some ethnic differences in skin and hair follicle characteristics, these differences are unlikely to significantly affect the penetration of topical substances, suggesting other factors such as cultural habits may also play a role.

TRH in hair follicles can influence hair color by increasing melanin.

This laboratory study observed that Prunus Tomentosa Thumb Total Flavone significantly promoted hair growth and follicle maturation in a C57BL 6 mouse model of hair loss.

This research identified fluphenazine as a novel agent that induced hair growth in mice, with iloprost further enhancing this effect, through gene expression analysis and connectivity mapping.

The study observed increased melanin and signs of skin aging in melasma-afflicted skin, with strong CK10 expression in the upper basal epidermis, potentially linked to excessive epidermal cell differentiation and aging.

This study found that collagen and its compound may have antioxidant effects and reduce melanin in guinea pigs, while increasing skin moisture and hydroxyproline content in mice.

This study observed that melanocytes in the outer root sheath of fetal scalp hair follicles may act as stem cells, showing rapid proliferation but immature function and morphology in culture.

This review discusses various methods of light-based hair removal and reports no new clinical results, highlighting advances in laser and intense pulsed light technologies used for targeting hair pigmentation.

This study found that betamethasone increased tyrosinase activity and melanin content in amelanotic melanocytes from human hair follicles, suggesting a potential mechanism for glucocorticoid treatment in vitiligo.

This study found that Indian and Chinese black hair, with higher melanin content, resist photochemical degradation better than European hair, which has lower melanin levels, when exposed to dry, hot climates.

This study observed that unpigmented keratinocytes saturate quickly with foreign substance uptake compared to pigmented melanocytes, where melanin significantly enhances binding.

This study found that the hair of a 16th-century female mummy discovered in Paju was remarkably well-preserved due primarily to a calcium-based surface coating that likely inhibited moisture and microorganism infiltration.

This study found that 5 alpha-dihydrotestosterone increased pigmentation in dorsal spots and scrotal skin of prepubertal male Syrian hamsters, while estradiol decreased scrotal skin melanocytes and reversed androgen-induced pigmentation in costovertebral spots.

This study reported the first documented case of congenital hypotrichosis in a white-tailed deer, based on histologic examination of a fawn collected in South Dakota.

This study used atomic force microscopy to image surface structures of human epidermal melanocytes, hair follicle amelanotic melanocytes, and mouse melanoma cells, revealing differences in branch structure and granule distribution.

RAPK is a rare skin disorder with pigmented spots, mainly on hands and feet, starting in youth.

Some chemicals can permanently or temporarily remove color from skin and hair, which can be distressing and is not well-regulated in cosmetics.

This symposium abstract reports no new experimental results and discusses the pathophysiology of hair growth as presented at an event organized by the Institute of Dermatology.

This study reviewed various dermatological conditions associated with oral contraceptive use, highlighting increased pigmentation, decreased sebum production, and changes in hair growth, among other effects.

This study suggests that polygonum multiflorum may treat androgenic alopecia by mediating the PI3K/Akt pathway to regulate apoptosis, inhibit inflammation and oxidative stress, and induce melanin production.

This study reports that mesotherapy for androgenetic alopecia may paradoxically lead to hair loss and scarring, highlighting the need for improved regulation and monitoring of this treatment.

This study found that conventional treatments like oral dutasteride and topical/oral minoxidil are effective for male androgenetic alopecia, and it provides guidance on the relative efficacy of some alternative treatments, such as topical melatonin and rosemary oil, compared to these conventional therapies.

This article discusses the challenges in hair follicle pigmentation research compared to epidermal melanocytes and highlights the limitations of relying on mouse models, but reports no new experimental findings.

This article presents a biochemical model to explain how drug molecules are incorporated into hair, highlighting factors such as drug melanin affinity and the role of physico-chemical properties.

This study found that spleens of black C57BL/6 mice contain eumelanin, with properties different from skin and hair melanin, and may originate from skin melanin transported by immune cells.

This article reviews the principles and practical considerations of laser and light-based hair removal techniques, but it does not report new clinical findings.