81 citations
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February 1997 in “Journal of Investigative Dermatology” This study suggests that minoxidil activates PGHS-1, which may explain its hair growth-stimulating effects and could aid in designing more potent hair growth-promoting drugs.
68 citations
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November 2012 in “Journal of Investigative Dermatology” This study found that PGD2 inhibits hair follicle regeneration in mice through the Gpr44 receptor, suggesting that blocking PGD2 or Gpr44 may enhance skin regeneration after wounds.
65 citations
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August 2007 in “Experimental Dermatology” This study found that prostaglandin metabolism enzymes are present in human hair follicles, suggesting a potential role in hair growth and differentiation, with some expression differences between men and women.
47 citations
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August 2016 in “Fitoterapia” This article reviews mechanisms by which herbal ingredients may stimulate or inhibit hair growth, and it reports no new clinical findings while suggesting potential for developing hair loss treatments.
22 citations
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October 2019 in “International Journal of Nanomedicine” This study suggests that the hydrogel nanoparticle formulation of hair growth-promoting compounds may enhance hair follicle penetration and induce hair growth in tested models, demonstrating its potential as a hair growth treatment.
13 citations
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May 2021 in “Plants” This study found that the n-hexane fraction from Leea indica leaves significantly increased hair growth in mice and showed potential as a natural treatment for alopecia.
9 citations
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November 2012 in “Biomolecules & therapeutics” This study found that diphlorethohydroxycarmalol significantly increased prostaglandin $E_2$ synthesis in HaCaT human keratinocytes by upregulating COX-1 and COX-2 expression, suggesting potential benefits from elevated $PGE_2$ production.
February 2024 in “Trends in Sciences” This study examined the stability of two 5α-reductase inhibitors in Tectona grandis extracts, finding that they are more stable in acidic environments and degrade rapidly under heat and light unless protected, suggesting the need for careful storage when developing anti-hair loss medications.
December 2023 in “Kiểm nghiệm và An toàn thực phẩm/Kiểm nghiệm và An toàn thực phẩm (online)” This study developed a liquid chromatography with tandem mass spectrometry method to detect sex hormones in health supplements from Hanoi, Vietnam, finding three out of 16 samples contained sex hormones, including banned testosterone at low levels (~0.5 mg/kg).
September 2021 in “Han'gug mi'saengmul saengmyeong gong haghoeji/Han-guk misaengmul saengmyeong gonghak hoeji” This study found that an ethanolic extract from the microalga Tetrathelmis tetrathele exhibited anti-inflammatory effects, promoted the proliferation of certain skin and hair cells, and inhibited 5α-reductase activity, suggesting its potential as a therapeutic agent for preventing alopecia and enhancing scalp health.
1 citations
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January 2022 in “Journal of Drug Delivery Science and Technology” This study successfully developed and optimized ethanol-free microemulsion systems for the transdermal delivery of finasteride, showing that the predicted optimal formulations had physicochemical characteristics close to estimated values, without significant damage to treated hair fibers.
April 2026 in “Cosmetics” In this randomized, double-blind, placebo-controlled trial, researchers found that a multi-targeted cosmetic formulation containing TrinogeniX™ significantly increased hair density and thickness in individuals with androgenetic alopecia without adverse effects, suggesting it as a potential safe and effective treatment option.
37 citations
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November 2024 in “Cosmetics” This review examines the promising role of nanocarriers, specifically liposomes and ethosomes, in enhancing transdermal drug delivery for skin diseases. Ethosomes, highlighted for their ability to penetrate deeper skin layers, show potential for more effective treatments but require further clinical investigation.
26 citations
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December 2022 in “Future Journal of Pharmaceutical Sciences” This review discusses the use of terpenes and invasomes as permeation enhancers for transdermal drug delivery, focusing on their potential applications in pharmaceutical formulations, but it reports no new experimental results.
16 citations
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July 2020 in “Advances in Traditional Medicine” This study found that the combined ethanolic extract ethosome formulation of Phyllanthus niruri, Zingiber officianale, and Croton tiglium Linné showed better safety and less cytotoxicity for hair growth promotion compared to the petroleum ether formulations.
July 2023 in “Pharmacognosy Magazine” This study found that Cerasus serrulata extracts, when obtained through specific methods, demonstrate significant antioxidative and antibacterial properties, as well as potential anti-alopecia effects in a mouse model, potentially making them useful supplements for these purposes.
October 2022 in “Journal of Kermanshah University of Medical Sciences” The researchers reported that caprylic acid effectively enhances the permeability and diffusion of minoxidil through rat skin compared to other penetration enhancers.
14 citations
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April 2021 in “Biology” 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.
9 citations
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February 2022 in “Biomolecules” This review concludes that while many epidemiological studies suggest high alcohol intake is associated with an increased risk of prostate cancer, the evidence may be affected by confounding factors such as diet and lifestyle.
4 citations
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April 2013 in “International Journal of Pharmaceutical Sciences and Drug Research” This study found that ethanol extracts from Musa paradisiaca cv. Puttabale corms have significant anthelmintic activity against Pheretima posthuma, outperforming the standard drug piperazine citrate in terms of paralysis and death times.
April 2022 in “Molecules” This study identified two potent 5α-reductase inhibitors from Tectona grandis leaves, and suggests that ethanol is a preferable solvent for extracting these compounds, which are potential ingredients for hair loss treatments.
48 citations
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May 2021 in “Molecules” The researchers found that plant extracts from Papaver rhoeas L., Clitoria ternatea L., and Carthamus tinctorius L. are effective natural cosmetic dyes, offering intense and stable colors without cytotoxicity.
19 citations
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January 2012 in “Biomolecules & Therapeutics” This study found that Grateloupia elliptica extract may help treat hair loss by promoting dermal papilla cell proliferation, inhibiting 5α-reductase, and reducing inflammation in various cell types.
15 citations
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February 2023 in “Colloids and surfaces. B, Biointerfaces” In this study using a porcine skin model, the researchers reported that smaller curcumin nanocrystals in xanthan gum gel showed higher passive skin penetration, while larger particles achieved deeper follicular accumulation.
2 citations
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January 2019 in “The Korean Journal of Food And Nutrition” Platycodon grandiflorum extracts may help prevent hair loss and fight dandruff.
March 2025 in “Molecules” This study explored the in vitro skin penetration of two compounds from Tectona grandis leaf extract used for standardization and found that compound 1 penetrates more efficiently than compound 2, especially with a propylene glycol enhancer.
June 2022 in “Pflügers Archiv - European Journal of Physiology” This study found that the deletion of soluble epoxide hydrolase (sEH) in mice altered the hair follicle cycle and increased hair growth through effects on hair follicle stem and matrix cells.
April 2025 in “Antioxidants” In this study, the researchers found that the water-soluble fraction of Rhus semialata gall extract and its component Penta-O-Galloyl-β-D-Glucose promoted hair growth in human dermal papilla cells, and clinical trials supported these findings, showing improved hair density and appearance compared to placebo.
October 2024 in “Cosmetics” In this study, subthermal RF-CRET currents were found to alter key molecular mechanisms in dermal papilla cells, promoting proliferation and survival while enhancing markers associated with hair growth and maintenance, suggesting potential benefits for hair regeneration.
14 citations
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October 2020 in “Journal of ethnopharmacology” This study found that both ethanol and aqueous extracts of Lepidium sativum seeds improved insulin signaling and reduced obesity-related metabolic changes in high-fat diet-fed rats, suggesting potential as a dietary supplement.