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This case report describes koebnerization-induced vitiligo in a woman following repeated eyebrow microblading, suggesting a link between the procedure and the phenomenon in susceptible individuals.

Stress can cause hair to turn gray by depleting stem cells.

This article explores the potential applications of polyglutamic acid in cosmetics, discussing its benefits for skincare and haircare, but reports no new experimental results.

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

This case report describes a patient with psoriasis who experienced scalp hair darkening and increased growth during anti–IL-17 therapy.

This study found that a combined pattern of repigmentation was most commonly observed in vitiligo, with a new 'medium spotted' pattern proposed for areas with few hair follicles.

This review discusses medication-induced gray hair repigmentation, highlighting that certain anti-inflammatory drugs and melanogenesis stimulators can cause diffuse repigmentation, though evidence remains low-quality and these medications are not currently indicated for this purpose.

Nilotinib may cause gray hair to return to its original color.

This review reports the first known case of hair repigmentation associated with lamivudine use and examines mechanisms related to drug-induced hair repigmentation, suggesting potential therapeutic strategies for reversing hair graying.

This review explores how low-energy He-Ne laser therapy may stimulate repigmentation in vitiligo by affecting mitochondrial pathways and melanocyte function, but does not report new clinical results.

This review discusses various surgical techniques for vitiligo repigmentation, noting that suction blister and split-thickness skin grafting have the highest success rates according to previous analysis, but reports no new results.

This study found that antroquinonol inhibited CD8+ T cell proliferation and reduced proinflammatory cytokine secretion in vitro, while also ameliorating H2O2-induced depigmentation and resisting reductions in hair follicle length, skin thickness, and tyrosinase expression in mice.

This study found that topical application of triiodothyronine (T3) can induce the transition of hair follicles from the telogen to the anagen phase in mice and stimulate hair shaft growth in vitro.

This review discusses the mechanisms of hair repigmentation and reports no clinical results; the authors suggest further research into topical treatments for reversing gray hair.

In this case study, an 11-year-old girl with severe alopecia areata experienced complete hair regrowth and unexpected white-to-black hair repigmentation after switching from baricitinib to ritlecitinib, suggesting that prolonged Janus kinase inhibition may aid both hair and pigment restoration in severe pediatric cases.

This letter to the editor discusses an observed case of hair repigmentation linked with etretinate therapy but reports no new research findings.

This excerpt discusses website navigation and access details for JAMA Dermatology and reports no new research findings.

This study describes changes in scalp hair color, including rare instances of repigmentation, following volumetric modulated arc therapy for skin cancer; this potential side effect may warrant discussion during informed consent.

This study found that thymus transplantation in athymic mice resulted in T-cell-driven hair follicle depigmentation and loss, without multiorgan autoimmune disease, highlighting mechanisms of tissue-specific tolerance.

This review discusses strategies for developing semi-solid topical generic products to match the quality of reference-listed drugs, using concepts like quality by design and reverse-engineering, but reports no new results.

This study investigated the use of dissolving microneedle patches to improve the skin-lightening effects of alpha-arbutin and resveratrol, finding that the patches enhanced intradermal delivery and slightly decreased the melanin index without affecting skin hydration or causing irritation over 24 hours.

This study discusses how dermatological issues in athletes can arise from or be exacerbated by mechanical trauma, infections, and environmental factors, highlighting the importance of thorough history and examination to differentiate these from other skin conditions.

This study reported successful and cosmetically acceptable repigmentation of leukoderma in three patients using minigrafts of normally pigmented, autologous skin.

This study found that exosome-based therapy using rose stem cell-derived exosomes may safely induce hair repigmentation in individuals with gray hair, particularly for those with shorter durations of graying and androgenetic alopecia.

Light therapy can effectively treat vitiligo and hair loss caused by a specific medication.

This source describes vitiligo as a chronic condition marked by the loss of skin pigmentation and discusses leukotrichia, a feature affecting 10% to 60% of cases, which arises from melanocyte loss in hair follicles and appears as well-defined white patches on the skin.

This report describes two cases of sustained hair repigmentation related to porphyria cutanea tarda, though the underlying mechanism remains unclear.

This review explores the potential of using genetically-manipulated stem cells as both therapeutic agents and gene delivery vehicles for enhanced wound regeneration, but it reports no new clinical results.

This article discusses the potential use of platelet-rich plasma as a treatment for vitiligo, but reports no new clinical results; further investigation is needed.

This study found that a 6-month treatment with 2% palmitoyl tetrapeptide 20 showed no significant improvement in reducing hair graying in patients, despite theoretical potential.