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This review discusses various biologics for hair aging but reports no agent capable of reversing the natural aging process of hair.

This study found that fractional Er:YAG laser combined with platelet-rich plasma resulted in greater skin repigmentation in patients with localized stable vitiligo compared to microneedling with platelet-rich plasma, with fewer side effects reported in the laser group.

In this study, plasmatherapy was found to improve immune status indicators in patients with vitiligo, particularly benefiting those with segmental vitiligo by normalizing immune markers and reducing IL-6 levels, suggesting its potential as an adjunct treatment to slow depigmentation progression.

This review discusses various aspects of cosmetic surgery, including the importance of professional empathy, the influence of operator skill, and the utility of technological advancements, but it does not present new clinical results.

This review discusses the identification and characteristics of melanocyte stem cells, emphasizing their role in hair pigmentation, greying, and skin repigmentation, but reports no new research findings.

This study reported that vitiligo patients in Turkey had a high prevalence of associated autoimmune diseases and auditory problems, suggesting vitiligo may be part of a systemic autoimmune process.

This review discusses the role of oxidative stress in hair greying and suggests that understanding melanocyte susceptibility at different follicular locations may help develop therapies for preventing and reversing the process; it reports no new experimental results.

In this study, UVB irradiation of organ-cultured human anagen hair follicles in vitro reduced hair elongation and increased cell death, affecting hair growth and regulatory processes.

This review discusses the potential use of cultured primary fetal cells from a single organ donation to produce therapeutic products, emphasizing the need for process consistency and safety verification, but reports no clinical results.

In this study, researchers evaluated the efficacy of a collagen booster used alongside CO2 fractional laser treatment for skin aging, finding that the combination treatment affected the vascularization and healing process of the skin on a healthy adult's forearm.

This review covers hair dye formulations, their mechanisms, and potential applications, but reports no new findings; the authors highlight the process of oxidative dyeing and repairing damaged hair.

This study identified hair shaft progenitors in the matrix that regulate hair growth and pigmentation by creating a niche dependent on stem cell factor, implicating KROX20+ cells in these processes.

In this study, hair color changes in piebald rats after skin grafting suggest that such changes are more likely due to the surgical process than the new environment.

In this study, full-thickness wounding on Lanyu pigs led to scar formation and disrupted cell markers, while partial-thickness wounding allowed limited regeneration of rete ridges and papillary dermis.

This study examined the factors contributing to gray hair, such as genetics and lifestyle, and found that while graying correlates with some health conditions, it is primarily a physiological process rather than a pathological one.

Imatinib can repigment grey hair, while SU11428 can cause temporary hair depigmentation.

This study highlights how combining genetic and environmental risk assessments could advance early screening and personalized prevention for vitiligo, given its genetic complexity and environmental interactions.

In this study, stable types of leucoderma such as segmental vitiligo and piebaldism showed 100% repigmentation after melanocyte transplantation, suggesting surgery as the preferred method for these conditions.

This literature review highlights the effectiveness of topical vitamin D (e.g., calcipotriol, calcitriol) in treating vitiligo, emphasizing its role in melanogenesis and as an immunomodulator, either alone or combined with topical corticosteroids, offering minimal side effects.

This study highlights multiple factors contributing to hair graying, such as oxidative damage, melanocyte changes, and genetic influences, and suggests that repigmentation may be temporarily reversible, offering potential targets for future treatments while urging caution when applying mouse model findings to humans.

This review highlights the possibility of safely altering hair color through innovative cosmetics by targeting key biological processes in hair follicles, using insights from mammalian pigmentation studies and drug-induced hair color changes as potential pathways.

This chapter reviews recent developments in vitiligo research, highlighting the role of melanocyte stem cell differentiation and oxidative stress in its management, but reports no new clinical results.

This study evaluated the efficacy of various skin graft types for burn injury healing, finding that xenografts had the highest repigmentation rate (87.50%), while device-facilitated autologous skin cell transplantation showed outstanding efficacy in reepithelialization, highlighting its potential in clinical practice.

This review discusses the potential role of systemic corticosteroids in the treatment of progressive vitiligo, but reports no new clinical results and suggests further research is needed.

In this study, plerixafor was found to enhance melanogenesis and promote repigmentation by engaging a β-arrestin–β-catenin–MITF signaling axis in melanocytes, and showed effectiveness in restoring depigmentation in a murine model without causing systemic toxicity.

In a mouse model study, transcutaneous auricular vagus nerve stimulation (taVNS) significantly reduced depigmentation in vitiligo, potentially through mechanisms that regulate oxidative stress and inflammation, indicating taVNS's promise as a therapeutic approach for this skin disorder.

This review discusses the use of 36 medicinal plant species for cutaneous wound healing and reports no new clinical results; the authors highlight the potential for these traditional practices to inform modern therapies.

This article discusses a case of patchy alopecia areata that spares greying hairs but reports no new findings; it refers to existing literature for context.

This review found that oral and topical phosphodiesterase inhibitors and topical prostaglandin analogues are safe and effective treatments for various skin diseases, including psoriasis, atopic dermatitis, vitiligo, and alopecia.

In this study, the researchers optimized a method for culturing melanocyte precursors from hair follicles and found that 1,25-dihydroxyvitamin D3 significantly promotes their differentiation and melanin synthesis.