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This study found that Ift20 is essential for hair follicle stem cell identity and hair regrowth, and it regulates keratinocyte migration during wound healing through focal adhesion integrin recycling, independently of ciliogenesis.

In this study, researchers suggest that hair follicle miniaturization in conditions like androgenetic alopecia may result from impaired conversion of quiescent stem cells to progenitor cells, influenced by the follicular niche, its collagen network, and various mechanical constraints.

This study found that upper-bulge epidermal stem cells in mouse hair follicles are specialized for nerve interactions, crucial for forming tactile sensory units, and influence touch responses via EGFL6 and αv integrin pathways.

In this study, upper-bulge epidermal stem cells in mouse hair follicles were shown to play a role in forming tactile sensory units by creating an extracellular matrix that supports nerve interactions.

This study found that Stat3 influences the differentiation and migration of keratinocytes, potentially impacting epithelial carcinogenesis, by examining Stat3 activation or deletion effects in mouse models.

Activating cAMP and ATP improves hair growth and strength.

This study found that hair follicle stem cells from young rats can be induced in vitro to differentiate into corneal epithelium-like cells using homogenate of rabbit corneal limbal stroma.

In this study, researchers using a UVB-induced mouse model identified the gene COL7A1 as a novel marker for hair luster, finding that minoxidil, caffeine, and biotin effectively restored its expression, indicating potential therapeutic strategies.

This review discusses the development, function, and complex roles of sebaceous glands in acne and suggests future acne treatments should target inflammation and lipid production; it reports no new clinical results.

This review discusses recent research on male infertility causes and treatments, emphasizing the need for further understanding of idiopathic sperm abnormalities and molecular factors to improve patient outcomes; it reports no new clinical results.

This article reviews historical reports of skin changes, such as pseudoacanthosis nigricans, associated with cholesterol-lowering drugs like triparanol and nicotinic acid, but presents no new clinical findings.

This study found that disrupting the Sox21 gene in mice led to progressive hair loss and regrowth, identifying Sox21 as a key regulator of hair shaft cuticle differentiation.

This review summarizes existing knowledge on the role of FOXN1 as a key regulator of thymic epithelial cell lineage and function, reporting no new experimental results.

This study found that biallelic LSS mutations lead to congenital hypotrichosis and cataracts, with each tissue-specific loss of function observed in mouse models.

This review discusses in vitro methods for evaluating the effects of hair care products on hair fibers, reporting no new results; the authors emphasize the importance of selecting appropriate and accurate equipment for testing.

This study identified KRT82 as a significant Alopecia Areata risk gene, finding that rare damaging variants are linked to elevated immune cell infiltration around hair follicles in affected individuals.

In this study, inducible whole-body Acly-knockout mice revealed that ACLY is essential for skin homeostasis, as its deficiency led to increased sebum production and skin abnormalities, indicating a vital role for cytosolic acetyl-CoA synthesis in preserving skin barrier integrity and systemic lipid regulation.

This review discusses the potential link between gut microbiota alterations and the onset and progression of alopecia areata, identifying it as a possible pathogenetic factor and therapeutic target, but reports no new clinical results.

This review discusses the involvement of vitamin D and its receptor in hair health, focusing on different types of alopecia, but reports no new clinical results; evidence remains inconsistent.

This study explored the molecular biology of skin adaptations in pangolins, revealing that certain genes for lipid synthesis have inactive patterns, while others related to skin function remain intact, suggesting complex evolutionary changes in their skin physiology.

This study investigated pangolin skin genetics, finding that while sweat gland-related genes are not inactivated, several genes related to sebaceous gland function are, which highlights complex evolutionary adaptations in mammalian skin.

This study reports that combining ergothioneine, collagen peptides, and sodium hyaluronate improved skin parameters like hydration, elasticity, and wrinkle reduction in Chinese women, while ex vivo data indicated enhanced antioxidant action and structural support, suggesting potential for anti-aging nutricosmetics.

This infographic compares the safety profiles of SH‑1, a cosmetic ingredient, which showed no systemic absorption, and PP405, an investigational drug with dose-dependent systemic uptake and potential threshold breaches, highlighting differences in safety between cosmetic and investigational substances according to this report.

In this review of permanent hairstyles like perms, the authors discuss the chemical processes involved and highlight potential risks such as hair and scalp damage, emphasizing the need for careful client assessment and safe application techniques to mitigate these risks.

This review found that anti-aging peptides show promise in cosmeceuticals due to their targeted actions to rejuvenate skin, but challenges like peptide stability, penetration, and limited clinical data limit their current effectiveness.

In this study, researchers conducted a large genome-wide association meta-analysis and found 30 significant genetic loci linked to the risk of dermatophytosis, shedding light on the roles of keratin biology, skin barrier defects, immune dysfunction, and obesity in the disease.

Modifying gut bacteria with pro- and postbiotics may help treat hair loss.

This study demonstrated that engineered exosomes loaded with growth factors, EGF and FGF, could successfully repair the hair follicle microenvironment in an androgenetic alopecia mouse model, enhancing hair growth without causing adverse immune reactions or toxicity.

In this study, adults with mild-to-moderate hair damage taking GPVGPS Collagen® daily for 24 weeks showed significant improvements in hair luster, strength, thickness, and density compared to placebo, with no safety concerns reported.

In this study, researchers reported that topical nanostructured lipid carriers containing tea seed or lavender oil significantly enhanced hair regrowth in female Wistar albino rats over 30 days compared to placebo, with increased hair length and follicular density observed.