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This study used Raman spectroscopy and wide-angle X-ray scattering to observe two main α-helix to β-sheet transitions in hair keratin under varying humidity levels, finding that water impacts when these structural changes occur, involving a disordered state.

In this study, Desmodesmus pannonicus water extract demonstrated significant antioxidative properties, inhibited melanin production, promoted wound healing in human keratinocyte cells, and showed potential for hair growth enhancement in human follicle dermal papilla cells, suggesting its promise for future dermatological applications.

In this study, photodynamic therapy was found to achieve permanent reduction of nonpigmented hair in mice, unlike an 800-nm diode laser, by targeting the hair matrix through repeated sessions.

This review explores the roles of dermal sheath cells in wound healing, highlighting their multifunctional contributions to inflammation, proliferation, and extracellular matrix remodeling, and proposes new insights into tissue regeneration and repair, especially in differentiating between hairy and non-hairy skin sites.

This study found that nanofat injections significantly improved scar characteristics, including collagen deposition, epidermal thickness, and vascularity, due to its anti-inflammatory and immunomodulatory properties.

Telogen effluvium is a condition where hair falls out due to various factors like illness, stress, or nutrient deficiency.

Topical minoxidil may slow hair loss but often doesn't lead to satisfactory hair regrowth and requires ongoing treatment.

This study suggests that topically applied thyroid hormones T3 and T4 promote hair growth on human scalp tissues ex vivo, highlighting potential therapeutic use for hair loss conditions like androgenetic alopecia.

In this study, researchers found that using a novel Leontopodium alpinum (Edelweiss) extract led to increased hair density and prolonged anagen phase in both ex vivo human hair follicles and a 5-month clinical trial, suggesting potential as an anti-hair loss treatment.

This study concluded that leucocyte-rich PRP has a continuous stimulatory effect on human fibroblast cells, enhancing their proliferation, migration, and impacting gene expression of the extracellular matrix and adhesion molecules.

This study observed that hydrophobic modifications of hair matrix proteins significantly alter the humidity-dependent glass transition temperature of human hair.

This study found that knocking out the integrin β1 subunit in induced pluripotent stem cells enhanced their migration and improved their wound-healing effects in a mouse model.

This study found that Grateloupia angusta extract improved wound healing by promoting matrix production and pro-angiogenic activity in cell cultures and enhanced early wound repair in a mouse skin incision model.

This study observed that a novel extracellular matrix hydrogel made from human fibroblast-derived matrix improved wound healing in animal models, showing significant effects such as hair follicle formation, reduced inflammation, enhanced pro-healing growth factor levels, and interaction with macrophages, compared to traditional collagen hydrogels.

This review highlights that incorporating nanomaterials into scaffolds can significantly enhance angiogenesis in tissue regeneration by simulating extracellular matrix structures and effectively delivering angiogenesis-related factors, offering promising designs for vascularization and therapeutic applications.

The researchers reported that marine-derived saccharides, specifically L-fucose and chondroitin sulphate disaccharide, supported skin and hair health by promoting cellular proliferation, enhancing extracellular matrix production, and aiding the hair cycle's growth phase, potentially minimizing aging effects.

This case report describes retinal occlusion and medial canthal swelling in a 64-year-old female following the injection of acellular porcine urinary bladder matrix for hair restoration, a previously unreported side effect.

In this cell study, Eclipta alba extract inhibited cancer cell proliferation and induced apoptosis, showing potential antiproliferative and anti-metastasis effects on liver and related cancer cell lines.

This study observed that while PRP therapy increased inflammation and fibrosis in photoaged skin, ADSCs therapy showed promising antiaging effects by promoting elastin and fibrillin formation and remodeling the dermis.

This study found that a newly synthesized peptide from fermented Trapa japonica extract significantly promoted wound recovery and showed antiaging effects in skin cells and a clinical study, suggesting potential as a cosmetic product.

In this study, saponins from Korean red ginseng were found to protect against the harmful effects of airborne particulate matter on human skin cells by reducing oxidative stress, inflammation, leptin expression, and melanin production.

This study found that a PGE2 matrix, when injected subcutaneously, increased the proportion of developing hair follicles and improved hair follicle stem cell markers in a mouse model of hair loss.

This study found that the CDK4/6 inhibitor palbociclib may protect human hair follicles from the damaging effects of taxane chemotherapy by inducing G1 arrest in stem/progenitor cells.

This study found that Activin B at 10 ng/mL may promote vibrissae follicle growth in mice by enhancing hair matrix cell proliferation and cell cycle progression via ERK signaling pathways.

This study found that adipose‐derived stem cells can restore skin barrier function and inhibit photoaging-related responses in UVB-irradiated mice, suggesting a potential therapeutic role in managing skin photoaging.

In this study, oleanolic acid was found to enhance hair follicle growth and promote hair matrix cell proliferation via the Wnt/β-catenin pathway in a human hair follicle organ culture model.

This study highlights that while hair follicle cycling is primarily influenced by growth factors like IGF-1 and Wnt signals, the role of cytokines in normal human hair growth and cycling is less understood.

In this study, fish-derived collagen hydrolysate from tilapia scales improved hair growth and skin health in both cellular and mouse models, reducing oxidative stress and inflammation while enhancing hair quality and promoting beneficial gene expression.

This study found that PBMCsec has anti-fibrotic effects on mouse and human skin scars by regulating pro-fibrotic gene expression and inhibiting myofibroblast differentiation and elastic fiber breakdown.

This study found that ablative fractional laser treatment significantly alters gene expression related to skin rejuvenation, enhancing wound healing and tissue regeneration processes, and suggests multiple treatments may maximize these effects.