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In this review, researchers summarize drugs associated with scarring or permanent hair loss, notably after chemotherapy and tyrosine kinase inhibitor treatments, emphasizing the need for stronger evidence and long-term follow-up studies, as current findings are mostly from case reports.

In this study, photodynamic therapy was found to achieve permanent reduction of nonpigmented hair in mice, unlike an 800-nm diode laser, by targeting the hair matrix through repeated sessions.

This study found that permanent makeup pigments were applied at similar depths as traditional tattoo inks in mice but faded over time due to larger inorganic pigments.

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 found that 2-hair follicular unit grafts were the most common grouping in hair transplant procedures, with frontal edema as the most frequent postoperative complication.

This source reports that modern hair transplant techniques, including follicular unit grafting, can create natural-looking results and are increasingly used beyond male pattern baldness to treat areas like eyebrows and scars, while even some controversial indications are being explored.

This paper presents a case of a young male with a family history, showing overlap between ulerythema ophryogenes and keratosis follicularis spinulosa decalvans, affecting both eyebrows and scalp with cicatricial patchy alopecia.

PLLA injections can cause hair loss and skin issues.

This randomized trial found that diode laser achieved more favorable long-term hair removal outcomes but induced more discomfort and transient adverse effects compared to intense pulsed light in women with Fitzpatrick skin types I-IV.

This study developed and tested a shampoo with semi-permanent dyes designed to gradually cover gray hair, reporting maintained stability and effective gray–black coloration on high-canities hair tresses through eight wash cycles.

This review highlights recent advancements in understanding and treating alopecia, emphasizing genetic and immune factors involved in different forms, and discusses emerging therapies such as gene-editing and exosome-based treatments, though achieving complete hair regrowth remains a challenge.

This review discusses primary neutrophilic cicatricial alopecias, their clinical and histological characteristics, and the importance of early therapeutic intervention to prevent scarring alopecia, reporting no new clinical results.

Hair care products are important for appearance and self-esteem, and choosing the right ones can help maintain healthy hair.

This study found that alopecia-related content on TikTok is generally low in quality, with dermatologist-created videos being higher quality but receiving less engagement compared to personal experience videos.

This study analyzed the swelling behavior of human hair during permanent waving treatment, finding that both the microstructure and macrostructure of intermediate filaments swell simultaneously at the initial stage, and while partially destructed by reduction, they are considerably restored through oxidation.

This case study reports that a 35-year-old woman developed nonscarring alopecia following the cosmetic use of poly-L-lactic acid on her face and hairline.

In this case report, a young female who unintentionally ingested topical minoxidil experienced severe circulatory shock and acute pulmonary edema, emphasizing the need for immediate treatment with fluid resuscitation and vasopressors.

In this study conducted among secondary school girls in Minia, Upper Egypt, researchers reported a traction alopecia prevalence of 31%, suggesting a significant occurrence of this potentially reversible hair loss due to tight hairstyles.

This study found that oral minoxidil 5 mg daily significantly improved hair growth in men with androgenetic alopecia, though it may cause minor side effects like hypertrichosis and pedal edema.

This study found that oral minoxidil 5 mg daily significantly improves hair growth in men with male pattern hair loss, demonstrating safety with minor side effects such as hypertrichosis and pedal edema.

Endoscopic forehead and brow lifting safely and consistently improves aged eyebrows, but may have complications.

This study found that arrector pili muscles formed by Sonic Hedgehog signaling play a critical role in maintaining sympathetic nerve connections to hair follicle stem cells, influencing hair regeneration, with implications for hair loss treatments.

This study found that human iPSC-derived dermal papilla precursor cells can regenerate hair follicle structures, offering a potential new treatment approach for permanent alopecia.

This study found that, in mouse tail epidermis, stem cells rapidly activate and regenerate new progenitors to repair wounds, with mechanisms affecting their proliferation, differentiation, and migration.

This review discusses recent findings on hair follicle morphogenesis and regeneration, focusing on molecular signals and stem cells, and suggests that understanding these processes may aid in developing new strategies for wound healing.

This review evaluated the evidence on skin disorders linked to levodopa treatment for Parkinson's disease, suggesting a possible association with melanoma, though evidence remains inconclusive and further studies are needed.

Hair transplantation and micrografting, used for baldness, involve moving hair follicles from hair-rich to bald areas, requiring careful procedure and post-care for success.

This study evaluated the credibility of YouTube videos on exosome therapy, finding that despite promising preclinical results for wound healing, videos mostly focus on cosmetic applications and generally score low on educational quality, with doctor-made videos rating higher.

This review discusses mesenchymal–epithelial interactions in hair follicle development and cycling, highlighting recent insights without reporting new experimental results.

This study found that previously undescribed WNT10A mutations are a prominent cause of various forms of ectodermal dysplasia, including OODD and Schöpf-Schulz-Passarge syndrome, with gender-specific phenotypic effects noted.