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In this review, researchers emphasized the importance of integrating natural extracts and modern cosmetic science to develop safe and effective hair-care products, highlighting herbal ingredients and modern advancements that enhance hair health and manageability.

This study describes how shotgun proteomics can identify over 300 proteins in hair shafts, potentially allowing for the diagnosis of diseases through noninvasive human proteome sampling.

In this study, miR-31 was found to play a significant role in hair cycle regulation in mice by controlling key gene expressions involved in hair growth and differentiation.

This review highlights recent advances in chitosan-based nanoparticles (CS NPs) for drug delivery, discussing their modifications, preparation methods, production with organic and inorganic materials, and their latest implementations in the field, emphasizing the role of CS NPs in improving drug transport and release properties.

In this study, the researchers identified key genes with differential m6A methylation involved in cashmere fiber growth, suggesting these modifications may play a significant role in this process.

This study concluded that the formulated polyherbal shampoo is a chemical-free product with nourishing, conditioning, cleansing, and antimicrobial effects.

This review highlights advancements in 3D bioprinting for skin tissue engineering, focusing on exosome-loaded bioinks that show potential for enhancing skin regeneration and repair.

This study found that genetic variants in the goat KRTAP22-2 gene are associated with the mean fiber diameter of cashmere in Longdong Cashmere goats, suggesting these variants could serve as molecular markers for improving cashmere traits.

In this study, researchers found two non-synonymous SNPs in the TERT gene associated with mean wool staple strength in sheep, suggesting TERT as a potential candidate gene for improving wool traits.

In this study, a copolymer made from Tung oil and Tung free fatty acids demonstrated improved mechanical and thermal properties for hair repair, with enhanced resistance and flexibility observed in treated bleached hair, suggesting its potential as a sustainable biopolymer for cosmetic applications.

The authors conclude that optimizing hair shaft production and appearance may best be achieved by integrating biological, chemical, and physical intervention strategies.

In this study, researchers identified six unique genetic variants of a sheep gene, KRTAP19-3, with specific variants linked to changes in wool fibre traits, such as increased fibre diameter variability, suggesting these genetic differences affect wool characteristics in Chinese Tan sheep.

This research reports that KCV and its palmitoylated derivatives show strong effectiveness in strengthening hair proteins, indicating their potential for use in advanced hair care products.

In this study, polydopamine emerged as a safe and effective alternative to traditional hair dyes like PPD for dyeing gray hair permanently, showing resistance to detergents and causing less toxicity and hair loss in mice.

This study reviews the biology and cosmetic treatment of hair, emphasizing future advancements in safer, more effective procedures to meet consumer needs for hair care.

This study found that disulfide bonds in keratin increase its strength and toughness, with some loss of α-helical structure under load, highlighting their role in trichocyte α-keratin's mechanical properties.

This study reports that the mechanical interactions between human skin and adjacent subcutaneous white adipose tissue influence the appearance of skin wrinkles, with sWAT reinforcement potentially more effective for reducing signs of skin aging than skin reinforcement alone.

This study found that single-dose x-ray irradiation in rat calvaria skin led to morphological changes in collagen fibers, disorganization, and a temporary absence of sebaceous glands and hair follicles.

This study found that the stability of the coiled-coil structure in human hair keratin is maintained by ion-pairing and hydrophobic interactions, which are disrupted as pH approaches 7.0.

Hair movement can indicate hair quality and health.

This study found that chemically treated hair, particularly when subjected to both acid straightening and bleaching, experiences more significant structural damage when exposed to heat, highlighting key changes in both the internal and surface components of hair fibers.

This study presents a novel composite hydrogel dressing with berberine-loaded silk fibroin microspheres and Calotropis gigantea fibers, demonstrating enhanced antibacterial activity, mechanical strength, and wound healing capabilities in treating chronic and infected wounds.

This analysis highlighted the importance of integrating scientific literacy into chemical hair procedures, emphasizing that understanding the interaction of chemical agents with hair's biological structure and making evidence-based decisions can improve safety, predictability, and professional standards in the beauty industry.

This review highlights the complex role of scientific knowledge and professional expertise in safely performing chemical hair procedures, emphasizing the importance of education to prevent potential adverse effects like hair damage and scalp irritation.

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 potential of plant-derived natural compounds as biocompatible and biodegradable materials in dermal and transdermal delivery systems, emphasizing their unexplored benefits and detailing recent advances in isolation techniques and drug delivery technologies.

Hair movement can indicate hair quality and health.

This study observed that prolonged water or soil exposure can lead to significant reductions in drug levels in bleached and natural hair samples.

This study found that a hair cream made from cocoa pod peel water fraction effectively stimulated hair growth in rabbits, with the best result at a 12.5% concentration, without causing skin irritation.

This study observed that eco-friendly PALF forms a protective physical barrier on the skin, helping limit the impact of environmental pollutants and offering additional benefits for skin and hair in various cosmetic formulations.