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This study found that Polygonum multiflorum extract may promote hair growth by increasing anagen duration and activating dermal papilla cells in human hair follicles, as observed in cultured cell models.

In a study on nude mice, topical application of Chrysanthemum zawadskii extracts stimulated hair growth and increased hair follicle numbers, suggesting potential for alopecia therapy.

This study found that microwave-assisted Opuntia humifusa extract improved antioxidant and anti-inflammatory properties to counteract particulate matter's harmful effects on HaCaT keratinocytes.

This study found that shallot extract may promote hair growth in androgenetic alopecia by reducing inflammation and modulating gene expression related to key hair growth pathways.

This study found that the alcohol extract of Vernonia anthelmintica may counteract stress-induced hair follicle growth inhibition in mice, potentially offering a new approach for treating stress-related hair loss.

This review found that exposure to pollutants like PM, NOx, and PAHs is linked to various skin and hair disorders, indicating a need for cosmetics with natural adsorbents to reduce pollutant effects, achieving 30-55% removal efficiency.

This study found that a 4:1 combination of Rhynchosia nulubilis and Polygonum multiflorum extracts significantly promoted the proliferation of human dermal papilla cells and alleviated testosterone-induced cytotoxicity, suggesting potential for treating hair loss and related disorders through a synergistic approach.

This review discusses the bioactive compounds and biological activities of Polygonum multiflorum Thunb. and highlights concerns about its hepatotoxicity, but reports no new clinical results.

This study found that Sida cordifolia collected in Colombia is a good source of steroidal saponins, which may contribute to its antioxidant and antifungal properties.

This review highlights recent advances in understanding how the extracellular matrix regulates epidermal stem cell fate, emphasizing the importance of the hair follicle stem cell niche, but reports no new empirical findings.

In this study, researchers detailed how hair follicles regenerate after microsurgical amputation, observing a wound reaction involving dynamic dermal-epidermal interactions and changes in extracellular matrix components.

This paper highlights the growing scientific interest in plant extracts for cosmetics due to their potential benefits, including antioxidant, antimicrobial, and protective properties, while emphasizing the need for quality and safety assessment to mitigate possible adverse reactions.

This review highlights various alternative and complementary treatments for androgenic alopecia, noting that while only two FDA-approved options exist, increased awareness among dermatologists of supportive evidence for other therapies may better inform patient education.

This review discusses the differences in wound healing between fetal and adult skin, highlighting the potential to uncover genes for scarless repair that could improve adult wound healing.

This review summarizes existing evidence on how YAP and TAZ proteins are activated in epidermal keratinocytes and their role in coordinating with other signaling molecules to control transcription and influence epidermal cell fate, highlighting their importance beyond the Hippo pathway.

Finasteride effectively inhibits 5α reductase, while plant extracts like Permixon and Bazoton don't show significant results.

This study found that Ecklonia cava extract increased skin hydration and decreased redness, suggesting potential benefits for protecting and repairing scalp skin from pollutant-induced damage.

This study found that ethanol extract of Tubtim Chumphae rice bran downregulates SRD5A gene expression, similarly to finasteride, suggesting potential use as an anti-hair loss product.

This study found that using Urtica cannabina extract shampoo led to increased levels of copper, zinc, and iodine in the scalp hair of Mongolian women, along with improvements in hair growth, diameter, and density compared to a regular shampoo.

This study found that the methanol extract of Eclipta alba showed dose-dependent hair growth promoting activity in pigmented C57/BL6 mice by influencing the transition from the telogen to anagen phase.

This study found that hydroxysafflor yellow A-rich Carthamus tinctorius extract promoted hair growth and gene expression linked to hair proliferation in both cell cultures and mouse models.

This study found that procyanidin B-2 may promote hair growth by reducing expression and inhibiting translocation of PKC isozymes in murine hair epithelial cells.

This study found that human placental extract promoted hair growth and influenced cellular pathways in vitro and rat models, suggesting potential for future hair loss treatments.

In this randomized study, ViviScal® significantly outperformed a fish extract in increasing non-vellus hair count and achieving clinical and histological improvement in young males with hereditary androgenic alopecia.

In this study, D-004 did not affect androgen-dependent development in rats exposed in utero, while finasteride caused significant changes in male offspring's androgen-dependent tissues.

In this study, a herbal extract mixture significantly reduced IL-1α gene expression in HaCaT cells, suggesting it may aid in the treatment of nonscarring alopecia.

This study demonstrated that keratin extract can stimulate hair growth by inducing the anagen phase in telogenic mice.

This study found that ethanol extract and n-hexane fraction of rampai leaves may stimulate hair growth in rabbits, showing potential as an anti-alopecia treatment.

In this study, researchers developed an antioxidant hair tonic using Dipteryx odorata (cumaru) extract, aimed at treating scalp psoriasis, which could potentially improve quality of life for patients due to its natural anti-inflammatory and antioxidant properties.

This study evaluated a hibiscus-based herbal shampoo formulation and found it to have effective cleansing and conditioning properties, mild antimicrobial benefits, and good physical stability, positioning it as a natural alternative to synthetic shampoos.