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This review highlights that extracts from *Hamamelis virginiana* (witch hazel) exhibit antimicrobial, anti-inflammatory, antioxidant, and wound-healing properties in various studies, showing promise for future therapeutic use in dermatology and cosmetology, particularly for skin treatments.

In this study, Lespedeza bicolor extract was found to enhance dermal papilla cell proliferation and extend the anagen phase in mice, suggesting its potential as a treatment for alopecia.

This review discusses the effects of chemical hair straighteners and reports associated side effects like scalp inflammation and hair damage, noting the variability of findings and the need for further research.

This review examines AAS-related deaths and finds that anabolic-androgenic steroid abuse may lead to severe cardiac abnormalities, contributing to fatal arrhythmias and sudden cardiac death in young athletes and bodybuilders.

This review discusses how ionizing radiation causes skin damage by inducing cellular senescence in keratinocytes, which secrete inflammatory mediators, recruiting immune cells and exacerbating inflammation, impacting the skin barrier function and healing.

This review article addresses how the TRPV4 ion channel helps cells respond to mechanical and environmental stimuli, discussing its role in calcium signaling crucial for tissue repair and fibrosis across various organ systems, and highlighting potential therapeutic targets from animal and disease models.

This study evaluated a hair mask containing rice germ oil GX-N and ferulic acid on damaged hair and found that rice germ oil GX-N improved hair characteristics after bleaching, UV, and heat exposure, but adding ferulic acid did not provide extra benefits.

In this research, scientists developed a compression therapy model using immobilized mice, successfully analyzing skin without causing injury, and observed increased epidermal thickness and changes in adipocyte volume, with no increase in DNA damage markers.

Intermittent fasting slows hair growth by damaging hair follicle cells.

This study reports the development of a prototype robotic hair transplant system capable of efficiently harvesting and implanting hair grafts, showing promising accuracy and performance in tests using a spherical scalp phantom.

This study demonstrated a novel use of tape stripping on a human skin model to simulate the inflammation and barrier damage caused by dry razor shaving, highlighting potential shaving and skin-care formulations that may mitigate such damage.

This case report describes a rare instance of melanocytic matricoma, a benign pigmented papule found in sun-damaged skin of an elderly individual, highlighting its distinct clinical and pathological features.

This review discusses the epidemiology, risk factors, clinical features, and management of scalp melanomas, highlighting their high mortality rates and specific challenges in diagnosis and treatment; it reports no new research findings.

This case report describes a 30-year-old woman with vitiligo who developed a rare dermatophyte infection encircling one of her vitiligo patches, possibly due to immunosuppression from her treatment.

This study found that different polypeptides, including KP peptide and hydrolyzed keratin, can improve the mechanical properties of damaged hair under varying conditions, with reduction environments and cysteine content influencing their effectiveness.

In this literature review, researchers compiled evidence on repurposed synthetic radioprotective agents, including metformin and simvastatin, that have demonstrated potential in mitigating the side effects of radiotherapy in cancer treatment.

In this study, androgenetic alopecia patients exhibited more nailfold capillary abnormalities, suggesting a potential link between microcirculation issues and the condition.

This review discusses the potential impact of COVID-19 on the male reproductive system and highlights unanswered questions regarding its mechanisms and implications for men's health and fertility, reporting no new clinical results.

This study found that stem cells from human deciduous teeth promoted hair regeneration and increased hair formation in mice, suggesting a potential mechanism involving the Shh/Gli1 pathway.

This study suggests that inflammation in the skin can exacerbate intestinal inflammation in inflammatory bowel diseases by activating fibroblasts in the colon through hyaluronan fragments released during skin inflammation.

This study demonstrates that Bazi Bushen capsules may have therapeutic potential against skin photoaging in mice by enhancing NRF2 expression and targeting the KEAP1-NRF2 pathway.

Minoxidil can cause heart muscle damage in dogs.

This chapter reviews cultural practices and morphological differences in ethnic hair, relating them to specific disorders seen in these populations, without presenting new clinical results.

This study found that nicotine caused damage to cochlear hair cells in vitro, and melatonin might protect against this damage, indicating its potential as a treatment for smoking-induced hearing loss.

Hair straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.

This study found that intermediate hair follicles are morphologically distinct from terminal follicles and offer a novel model for developing new alopecia therapies despite being technically more challenging to study.

Hair from people with seborrheic dermatitis is thicker scaled, more damaged, and thinner than healthy hair, and atomic force microscopy can help monitor the condition.

This study found that adding dithiodiglycolic acid to the hair straightening process decreased chemical damage and preserved the structural integrity of the hair matrix compared to using thioglycolic acid alone.

This review explores how hair dyes and perms can damage hair structure and notes that while some adverse outcomes like skin irritation and allergic reactions have been reported, evidence from human studies remains inconsistent regarding potential risks, including cancer.

This study found that a simplified classification based on clinical and morphological features may aid in the diagnosis and initial management of inherited keratinizing disorders, although genetic analysis is essential for definitive diagnosis.