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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 review discusses the need for an updated 'European hair cosmetic series' to include common contact allergens and remove outdated substances based on current evidence and regulations, but it reports no new results.

This paper suggests that coating hair with drug-loaded nanotubes may offer durable drug delivery and color applications, with potential for both human and veterinary uses.

This case study and literature review highlights a chemical burn from hair dye experienced by a 17-year-old girl, resulting in a long-term scalp ulcer. It emphasizes the need for careful consideration of scalp complications and a multidisciplinary treatment approach in hair dye procedures.

This study suggests that higher use of phytoestrogen-containing hair and personal care products may increase the association between permanent hair dye, straightener use, and breast cancer risk in black women.

This study highlights the importance of recognizing artifacts in trichoscopy, as certain cosmetic products can mimic signs of early androgenetic alopecia.

This review discusses the use of laser and intense light sources for hair removal and reports no new clinical results; the authors highlight the potential for aesthetic medicine to include these technologies.

This study reports that A132, a hair dye ingredient, induces phototoxicity and photogenotoxicity via mitochondrial apoptosis when exposed to sunlight, suggesting potential risks of oxidative stress and hair damage.

This study reported that fermented grapeseed oil may enhance hair permeability and improve strength and color retention in chemically treated hair compared to regular grapeseed or silicone oils.

This article discusses hair care practices and hair cosmetics in managing alopecia but reports no new clinical findings; it emphasizes the importance of scalp health and good patient-physician communication.

In this single case study, Ayurvedic treatments using Madhuka taila nasya and Japaakusumadi lepa were reported to benefit a patient with premature hair graying, suggesting a potential safe and effective alternative to conventional methods.

This article discusses various aspects of hair and scalp health, ancient philosophical perspectives on hair, and causes of hair disorders in children, without reporting new clinical results.

This study reported that a new coating made with delaminated Ti₃C₂ MXene nano-sheets and a tea-derived compound effectively protects hair keratin from damage by providing UV screening, thermal dissipation, and antioxidation, while also enhancing mechanical strength and restoring wettability.

This study suggests that using patient-specific products and individualized patch testing can improve the accuracy of diagnosing scalp allergic contact dermatitis in women.

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.

This study highlights the importance of creating customized, evidence-based hair care solutions by considering scalp types and environmental factors, confirming the effectiveness of multidisciplinary approaches integrating dermatology, cosmetology, and trichology to develop safe and efficient products and treatments.

This review discusses the chemical effects of UV radiation on hair, hair photoaging, and photoprotective measures, and calls for more focused research in hair photoprotection as a field.

This article reviews the role of trichoscopy in diagnosing hair weathering conditions like trichorrhexis nodosa and trichoptilosis and suggests treatment by avoiding harmful chemical and physical factors, but it provides no new research findings.

This chapter describes the functions and purposes of hair care cosmetics, including shampoos, hair growth promoters, and grooming products, without reporting new experimental findings.

This narrative review analyzed the literature on premature hair graying, identifying potential contributors such as nutrient deficiencies, oxidative and emotional stress, smoking, genetic factors, autoimmune diseases, and medication side effects, but reported no effective treatment to reverse it, underscoring the necessity for further research.

This study found that excessive heat caused the most significant structural changes in hair from Caucasian and Afro samples, especially when combined with other treatments like bleaching and straightening.

This review discusses the biological and cosmetic aspects of hair aging and reports no new clinical results; it highlights current treatments and future research directions to address both aging factors.

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

This study reported that AA-PRP injections significantly increased hair count and density in individuals with pattern hair loss compared to baseline, demonstrating their potential for enhancing hair growth.

This study found that the uptake of molecules by hair is influenced by both hydrophobic and ionic charge interactions, with binding affinity decreasing as pH approaches the solute's dissociation constant.

This review discusses the regulations and clinical safety aspects of hair care cosmetics, highlighting the FDA's recommendation to evaluate these products for allergic reactions, avoid contamination, and include antimicrobial agents to ensure consumer safety, with ongoing monitoring through consumer feedback.

This review discusses the formulations, mechanisms, and physiological aspects of hair cosmetics and types, but reports no new results, suggesting a foundation for future hair research.

This review discusses surgical and non-surgical options for hair restoration in burn alopecia, highlighting follicular unit extraction and transplant as preferred methods but reports no new clinical findings.

In this study, tresses treated with pH 1.0 acid straightener showed better straightening but more damage to hair properties compared to those treated with pH 2.0.

This source reviews the application of various natural substances, particularly plant extracts from the Ayurvedic system, in promoting hair growth, addressing common issues like pigmentation, dandruff, and hair loss.