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This study explored how silicones influence the interaction between hair fibers and their impact on hair volume under high humidity conditions.

In this study, hydrophobic interactions were found to primarily drive deposition on virgin hair, while electrostatic interactions were more significant for bleached hair, highlighting different target moieties for hair conditioning products.

In this study, researchers found that human scalp hair, particularly when unwashed, can significantly react with ozone, reducing personal ozone exposure and increasing exposure to volatile reaction products.

Healthy mitochondria in skin cells are essential for proper hair growth and skin cell interaction in mice.

This study found that alkali bromide solutions are absorbed into hair depending on salt activity, and the presence of the salt increases water absorption compared to normal conditions.

This study identified lymphatic vessels as crucial components of the hair follicle stem cell niche, coordinating connections and contributing to hair follicle regeneration in mice.

This study identified distinct myeloid subsets in the scalp of men with androgenetic alopecia, potentially revealing new drug targets for treatment.

This article explores the hormonal and genetic factors influencing androgenetic alopecia and identifies potential targets for treatment but reports no new clinical findings.

This study found that in mice, LSD1 interacting with HSP90 accelerates skin wound healing by enhancing HFSC glycolytic metabolism, proliferation, and differentiation via the c-MYC/LDHA axis.

Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.

This review discusses mesenchymal–epithelial interactions in hair follicle development and cycling, highlighting recent insights without reporting new experimental results.

This study found that in vitro, beard dermal papilla cells stimulated keratinocyte proliferation via androgen-dependent growth factors, while androgenetic alopecia cells released TGF-β1, inhibiting keratinocyte growth.

This study found that cultured papilla cells can induce follicle formation and hair growth when combined with different epidermal and dermal cells, highlighting their powerful inductive properties and potential for dermatological applications.

The researchers reported that hair follicle germinative epidermal cells can form complex structures when associating with papilla cells in culture, unlike other types of epidermal cells.

This article reviews the role of epithelial-mesenchymal interactions in hair follicle morphogenesis and the hair cycle, suggesting potential paths for developing treatments for hair growth disorders but providing no new clinical findings.

This study presents a novel in vitro assay using human folliculoid microspheres to research hair growth, which may facilitate preclinical testing of hair growth-modulatory agents.

This article reviews methods to enhance epithelial–mesenchymal interactions for hair follicle bioengineering but does not present new experimental results; it emphasizes optimizing combinations for successful regeneration.

This study found that while extracellular matrix components like hyaluronic acid promoted larger organoid formation, other matrix components hindered hair follicle germ assembly in an in vitro model.

This study suggests that stress-induced premature senescence of dermal papilla cells may contribute to hair follicle aging by impairing critical epithelial-mesenchymal interactions and promoting inflammatory cytokine production.

This study summarizes the signaling molecules and extracellular components involved in epithelial–mesenchymal interactions, enhancing our understanding of hair follicle regeneration and skin wound healing, but reports no new experimental results.

This study found that STAT5 activation and Sox18 are key in regulating hair follicle induction and cycling, while transducing SKPs with active STAT5B improved wound healing by reducing inflammation.

Adult hair follicle cells can create new hair follicles from corneal cells with the right support.

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 study, researchers examined juglone's potential as a restoring agent for hair keratin damaged by permanent or bleaching treatments, finding that juglone formed Michael adducts with cysteine residues, leading to a more regular hair surface as observed via IR spectroscopy and SEM analysis.

This study found that minoxidil accumulated in pigmented hair follicle cells more than in unpigmented ones, but this targeting by pigmentation did not affect hair growth.

This study found that adult dermal papilla cells guided high-passage adult keratinocytes to produce new hair fibers, suggesting potential for large-scale hair follicle bioengineering.

In this study, α-MSH and cyclic AMP were found to stimulate melanogenesis in hair follicle cultures, while cyclic GMP and melatonin inhibited melanin production but not tyrosinase activity.

This study found that calmodulin 7 (CaM7) inhibits the calcium channel CNGC14 in root hairs, affecting their polar growth by controlling calcium signaling.

This study developed molecular signatures for dermal papilla cells and their niche, uncovering novel signaling regulators and genes linked to hair disorders, which may inform future hair development research.

This study used spatial transcriptomics to investigate T cell-hair follicle interactions in cutaneous lupus erythematosus across mice, dogs, and humans, finding that CXCR3+ T cells and B cells are enriched in lesional skin, with implications for potential therapeutic targets.