August 2023 in “Skin Research and Technology” In this clinical trial, oral consumption of a persimmon leaf extract-containing complex significantly increased hair density and thickness over 24 weeks compared to a placebo, although improvements in hair gloss were not statistically significant.
December 2023 in “International Journal of Health and Pharmaceutical” This study investigated the effects of a derma pen treatment using green betel leaf extract cream on hair development in female Wistar rats, highlighting the antioxidant and anti-inflammatory properties of betel leaves that may aid in hair growth and condition.
December 2021 in “Ad-Dawaa' Journal of Pharmaceutical Sciences” This study concluded that hair tonic formulations using extracts of green tea leaves, celery leaves, or their combination can effectively promote hair growth in guinea pigs, with the fastest growth seen using a 2.5% green tea to 7.5% celery leaf extract ratio.
2 citations
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August 2022 in “Korean journal of medicinal crop science/Han-gug yagyong jagmul hag-hoeji” This study investigated the antioxidant and anti-inflammatory effects of the plant extract BLH308 and its potential to reduce hair loss, showing significant antioxidant activity in vitro.
July 2026 in “Zenodo (CERN European Organization for Nuclear Research)” In this study, researchers developed and tested an eco-friendly herbal hair gel containing extracts from curry leaf, flaxseed, and Aloe vera, finding that formulation F9 excelled in viscosity, spreadability, extrudability, antifungal activity, and stability, making it a promising sustainable alternative to synthetic hair gels.
July 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study formulated and tested eco-friendly herbal hair gels using extracts from curry leaf, flaxseed, and Aloe vera, finding that formulation F9 showed optimal viscosity, spreadability, superior antifungal activity, and stability over six months, making it a promising sustainable alternative to synthetic hair gels.
January 2026 in “International Journal of Health Engineering and Technology” In this study, researchers evaluated the effects of green spinach leaf extract on hair growth in New Zealand rabbits and found that the 15% concentration formula resulted in the highest average hair growth compared to other concentrations and controls.
31 citations
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October 2020 in “Journal of nanomaterials” This study suggests that silver nanoparticles synthesized using Grewia optiva leaf extract exhibit stronger antibacterial and antioxidant properties than the leaf extract alone.
7 citations
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December 2021 in “Annals of Phytomedicine An International Journal” This study observed that silver nanoparticles synthesized using Laurus nobilis leaf extracts significantly inhibited protein denaturation and membrane stabilization in vitro, suggesting potential as a basis for novel antiarthritic drugs.
1 citations
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October 2022 in “Surface Engineering and Applied Electrochemistry” This study reported that zinc nanoparticles synthesized from Monotheca buxifolia leaf extract demonstrated significant antimicrobial, antioxidant, and moderate hair growth-promoting activities, with potential use as a bacterial biosensor.
January 2026 in “Journal of Emerging Technologies and Innovative Research” This study reported that zinc oxide nanoparticles synthesized using Tridax procumbens leaf extract demonstrated significant antibacterial and anticancer activity, showing potential for applications in biomedical and pharmaceutical fields.
28 citations
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January 2019 in “IRAQI JOURNAL OF AGRICULTURAL SCIENCES” In this study, researchers found that silica nanoparticles synthesized using cold plasma showed a higher biofilm inhibition effect on Staphylococcus aureus and Escherichia coli compared to those made with a magnetic stirrer.
May 2025 in “International Journal Of Science Technology & Management” This study focused on developing a pomade called "Hyung Hair" made from rambutan leaf extract, which showed potential benefits such as reducing hair loss and slowing gray hair growth, with a feasibility analysis indicating the business's viability.
This study investigated whether combinations of green tea leaf and gotukola extracts could act as a hair growth stimulant but reports no definitive results on the most effective combination.
4 citations
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November 2024 in “Nano Biomedicine and Engineering” This study reported that silver nanoparticles synthesized from jackfruit leaf extract demonstrated broad-spectrum antimicrobial properties, with a formulated gel showing greater efficacy against E. coli compared to a commercial silver nitrate product.
November 2016 in “Zoo biology” This study observed that increasing dietary vitamin C in capybaras significantly improved their skin, coat, and weight, though other nutrients might also have contributed to their improved condition.
November 2024 in “Journal of Natural Remedies” This article reviews the use of herbal ingredients in hair care products, highlighting their potential benefits for scalp health, hair growth, and condition, while also discussing challenges such as individual sensitivities and the importance of transparent labeling.
2 citations
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August 2019 in “Journal of drug delivery and therapeutics” This study reports the formulation and evaluation of an herbal shampoo, "Herbello", aimed at improving antidandruff activity using various natural ingredients.
May 2024 in “Jurnal Penelitian Farmasi dan Herbal” In this experimental study using male rabbits, researchers found that a 7.5% concentration of green tea leaf ethanol extract hair tonic was nearly as effective in promoting hair growth as the positive control, minoxidil, over a 21-day period.
7 citations
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August 2020 in “Majalah Farmasetika” This review concluded that a herbal hair tonic formulated with 2.5% green tea leaf extract, in combination with specific solvents and additives, showed the best properties for stimulating hair growth.
5 citations
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September 2019 in “Medical Sains Jurnal Ilmiah Kefarmasian” This research investigates the potential of green tea leaves and herb gotukola for promoting hair growth, but it reports no new experimental results.
2 citations
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April 2016 in “Pharmaciana” This study found that a combination of 5% green tea leaf extract and 2.5% gotukola extract stimulated hair growth effectively, achieving a growth rate of 2.689 cm in 28 days.
February 2025 in “Biomimetics” This study developed a novel hair-straightening shampoo incorporating a polyphenol–inorganic sulfate redox agent, finding that it effectively straightens hair while enhancing strength and reducing damage due to its protective polyphenol coating.
July 2019 in “Majalah Obat Tradisional” This study reported that a 4% water fraction of green tea leaf extract showed the most effective hair growth promotion in rabbits.
45 citations
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January 2016 in “Journal of Nanomaterials” In this study, silver nanoparticles derived from Ziziphus nummularia leaf extract showed enhanced antibacterial, antifungal, antioxidant, and hair growth properties compared to the leaf extract itself.
2 citations
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November 2021 in “International Journal of Applied Pharmaceutics” This study found that a phytosome lotion made from Mangkokan leaf extract, using a green solvent and microwave-assisted extraction, demonstrated greater hair growth activity than 2% minoxidil, with the 30% phytosome lotion showing the highest efficacy in increasing hair length, weight, and diameter.
December 2024 in “Proceeding International Collaborative Conference on Multidisciplinary Science” In this study, researchers developed a shampoo using ambon banana peel and green tea leaves, reporting that it showed positive characteristics and was safe for addressing hair loss, with optimal viscosity levels achieved in certain formulations.
12 citations
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April 2023 in “Nano Biomedicine and Engineering” This study synthesized silver nanoparticles using an Artocarpus heterophyllus leaf extract and found that these nanoparticles, with a size of 100–110 nm, displayed effective antioxidant, antibacterial, and antifungal activities in vitro.
December 2022 in “Journal of Tropical Pharmacy and Chemistry” This study evaluated a hair tonic formulated from oil palm leaf extract, finding it demonstrated very strong antioxidant activity and could prevent hair decolorization from sun exposure, with effective concentrations ranging from 25 to 200 ppm.
February 2026 in “IOP Conference Series Earth and Environmental Science” This study identified specific morphological characteristics and kinship relationships among 27 candlenut genotypes in Karo Regency, North Sumatra, highlighting variations in stem, leaf, flower, fruit, and kernel traits, with the closest relationship between MTB1 and MTB2 genotypes.