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This study found that modern styling cosmetics can significantly alter hair structure through changes in interfacial chemistry and cohesion, particularly when applied to already damaged hair.

This review discusses the principles, materials, and applications of melt electrowriting-based 4D printing for creating biomimetic scaffolds, but reports no new clinical results; it highlights recent advancements and remaining challenges in the field.

This study found that the systemic wrinkled skin phenotype in Xiang pigs involves gene expression changes and genetic variations associated with oxidative stress and extracellular matrix components, resembling features seen in Shar-Pei dogs.

This study concluded that bleach treatment partly transforms the hydrophobic top layer of human hair cuticles into a hydrophilic surface with clustered cysteic acid, visualized at the nano-scale using dynamic Chemical Force Microscopy.

In this study, researchers reported that oral isotretinoin effectively treated facial papules in frontal fibrosing alopecia, with histopathologic findings suggesting the involvement of elastic fibers and sebaceous glands in papule formation beyond perifollicular inflammation.

This article reviews the thermoregulation mechanisms in African and Asian elephants and highlights challenges from climate change, with no new empirical results presented.

This study found that male and female chicken feather morphology and color patterns can be extrinsically modified through molting and resetting the stem cell niche during regeneration.

This review discusses the lipid composition of human hair across ethnic types, effects of damage on lipid content, and associated changes with diseases, but reports no new findings; further research is needed.

This study found that beard and body hair can be used as additional donor sources for scalp transplants in androgenic alopecia, retaining their original color, curl, and calibre.

This study found that structural defects in the hair shafts of sighthounds with bald thigh syndrome are related to a downregulation of genes and proteins essential for hair shaft formation.

In this proteomic analysis, the researchers found that transitioning from crimped to straight wool in Tan sheep is linked to significant changes in wool protein expression, revealing distinct patterns of keratins and keratin-associated proteins that could influence wool quality and economic value.

Hair care products clean, protect, style, color, and change hair structure.

This article is a letter to the editors about a novel observation regarding chemotherapy-induced alopecia and does not include an abstract with new research results.

This case report highlights a 12-year-old boy with twenty nail dystrophy in isolation, emphasizing the need for thorough physical exams to distinguish nail disorders and provide appropriate management and counseling on the condition's benign nature and good prognosis.

A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.

This discussion examines the aesthetic symptoms of perimenopause, such as hot flashes and skin changes, and reviews management options like hormone replacement therapy and topical cosmetics, emphasizing the importance of consistency in treatment to maintain results.

This review highlights morphological factors contributing to age-related alopecia and suggests further research to understand and potentially mitigate cellular aging processes affecting hair quality.

This qualitative study reported that platelet-rich plasma treatments improved patient satisfaction and quality of life by enhancing facial texture and hair quality, supporting PRP as a viable option for conditions like alopecia and skin rejuvenation.

This case report describes a patient with chronic renal failure on hemodialysis who experienced hair depigmentation while taking heptaminol, with the condition reversing after discontinuing the medication; the exact mechanism causing the color change is still unclear.

This research identified genetic sequences that evolved at different rates in hairless versus hairy mammals, suggesting specific genetic changes contributed to the convergent evolution of hairlessness across various mammalian species.

This study reports an 8-year-old boy with trachyonychia, lichen planus, and alopecia areata who showed significant improvement in hair growth, nail condition, and skin lesions after 6 months of biweekly pulse systemic corticosteroid therapy.

This chapter reviews hair anatomy, hair shaft structure, and various cosmetic treatments that can alter or damage hair, but it presents no new research findings.

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

The document concludes that clinicians should be aware of common hair and scalp disorders in women of African descent and that more research is needed to develop effective treatments.

This study found that a polyherbal hair serum made from fenugreek, aloe vera, hibiscus, neem, and rice water effectively improved hair texture, reduced hair loss, and enhanced scalp health, with favorable safety and stability profiles, making it a potential natural alternative to synthetic hair products.

This study developed a herbal hair serum using ingredients like fenugreek, aloe vera, and hibiscus, and found it improves hair texture, reduces hair loss, increases shine, and enhances scalp health, while also being safe, stable, and non-irritating.

This study demonstrates that polarized second harmonic generation imaging effectively monitors wool fiber stretching, revealing significant structural changes in keratin alignment that improve textile performance.

In this laboratory study, researchers developed a multifunctional organic hair cream with various natural extracts, finding that the cream with 15% extracts demonstrated higher physical stability, hair strength, and antimicrobial activity compared to lower concentration samples and synthetic alternatives.

This narrative review provides an overview of the persistent dermatological side effects experienced by cancer survivors due to treatments, highlighting their impact on quality of life and the need for structured dermatological care during survivorship.

This study found that individuals with androgenic alopecia have an increased number of thin hairs (less than 40 microns in diameter) per cm², which may affect their clinical appearance.