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This review provides an analysis of topical treatments with clinically proven efficacy for managing hyperpigmentation and concludes that the most effective approach is using combined therapies that target multiple aspects of skin pigmentation physiology.

This study demonstrates that a novel autologous hair follicle-derived epithelial sheet can effectively repigment skin in patients with stable vitiligo, offering a potential new treatment option.

This study found that transfecting alpaca melanocytes with miR-5110 altered gene expression related to pigmentation, specifically identifying pathways like MAPK and Wnt as involved in melanogenesis regulation, providing insights into miR-5110's role in pigmentation processes.

This clinical study in healthy Indian adults found that a four-month application of an Ayurvedic leave-on treatment significantly increased natural black hair density, reduced grey hair count, and was well-tolerated without adverse effects, suggesting its efficacy and safety for treating premature hair greying.

In this review, researchers examined the link between microorganisms and vitiligo, highlighting how microbes might impact the disease's development and suggesting avenues for better treatment strategies based on these interactions.

This review examined and discussed the role of dermis-derived factors in the regulation of melanogenesis, noting their significance in both normal and abnormal mammalian skin conditions, suggesting an underexplored area of study compared to dermal and epidermal influences.

This review highlights the diverse roles of melanocytes in pigmentation, immunity, and hearing among other functions, their involvement in disorders, and their emerging potential in regenerative medicine, including applications in disease modeling and therapy development using advanced technologies.

This study observed that exposure to different wavelengths of light affects opsin and clock gene responses in skin cells, suggesting potential therapeutic approaches using photobiomodulation for dermatological conditions like psoriasis and wound healing.

This abstract describes the role of melanin in determining hair color and protecting against UV radiation, highlighting how its production affects hair health, growth, and vitality, with reduced production contributing to greying with age.

This source reviews mechanisms and existing treatments for hair aging, highlighting factors like oxidative stress and DNA repair defects that affect hair follicle and stem cell function, and discusses research limitations and future directions in the field.

This study found that neonatal Regulatory T cells are crucial for maintaining PPARγ signaling in hair follicles, which supports melanocyte stem cell function and skin pigmentation during early postnatal development.

This study observed unexpected heterogeneity among pigment cells in human scalp hair follicles, identifying immature melanocyte populations outside traditional pigment production zones, raising questions about their potential roles beyond melanin synthesis.

This review discusses the cornification process of epidermal keratinocytes in forming the skin barrier and reports no new results; it emphasizes the importance for diagnosis and treatment of skin disorders.

This review discusses the interplay between signaling/transcription factor-mediated and epigenetic mechanisms in skin development and regeneration, highlighting the need for further exploration of epigenome reorganization in these processes.

This review discusses the roles and characteristics of skin stem cells, their niches, and signaling pathways in skin maintenance, aging, and cancer, highlighting their potential in therapeutic applications but presenting no new clinical findings.

Aging causes hair to gray and thin, with the timing of graying varying by race, and factors like oxidative stress and genetics can lead to hair loss.

Skin-derived stem cells could help treat skin aging and pigmentation issues.

This article discusses various biological mechanisms that influence the formation of skin lesion patterns, emphasizing the need for more systematic research to improve understanding and treatment of skin disorders, but reports no new empirical findings.

This study found that PM2.5 exposure induced oxidative stress in human keratinocytes and mouse skin, causing cellular damage, which was mitigated by the antioxidant N-acetyl cysteine.

This study found that mouse skin can produce and metabolize serotonin and N-acetylserotonin, with activity influenced by location, physiological skin status, cell type, and mouse strain.

This review discusses the potential of bioprinting technology in cosmetology, particularly for improving skin functions like pigmentation restoration and hair follicle development, but reports no new clinical findings.

In this study, researchers observed that low levels of fucose-binding lectin staining characterize limbal epithelial progenitor cells, which maintain a high proliferative capacity and may be enhanced by inhibiting fucosylation, offering insights for regenerative therapy of the limbal stem cell niche.

This manuscript suggests that exogenous hydrogen peroxide is a primary risk factor for higher incidence of cutaneous melanoma in swimmers, with UV radiation playing a secondary role.

This study reviews melatonin's diverse roles in dermatology, highlighting its potential to protect skin from UV damage and oxidative stress, enhance DNA repair, and influence hair follicle cycling, suggesting therapeutic applications in skin care and hair renewal.

This study suggests that typical skin lesions in Carney complex may originate from the pro-melanogenic activity of a specific dermal fibroblast population influenced by PKA signaling.

This review discusses the links between particulate matter exposure and skin diseases, highlighting oxidative stress and inflammation as key mechanisms; it reports no new clinical results.

This review discusses melatonin's potential in dermatology, highlighting its antioxidative, immunomodulatory, and DNA repair properties, but reports no new clinical results.

This review discusses the role of the circadian clock in skin functions such as cell proliferation and UV protection and reports no new results; the authors note its potential in studying immune regulation and seasonal behaviors.

This study suggests that melatonin plays a role in hair follicle function by modulating growth and pigmentation, and it may act as a protective agent in active hair growth phases.

This review discusses the potential of ultraviolet (UV) radiation technologies in wound care, highlighting their antimicrobial properties and risks of DNA damage, but reports no new clinical findings.