August 2021 in “Majalah Obat Tradisional” This study found that a hair tonic formulated from green tea extract showed similar hair growth-promoting activity to 2% Minoxidil in rabbits, without causing skin irritation or bacterial contamination.
December 2020 in “Jurnal Kedokteran Hewan” In this study, researchers found that cayenne leaf extract significantly enhanced hair length and quantity in mice, with a 10% concentration being the most effective for stimulating growth.
2 citations
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September 2020 in “International Journal of Applied Pharmaceutics” This study found that hair tonics containing clove ethanol extract increased hair growth in rabbits, with a dose-dependent effect observed at varying concentrations of the extract.
November 2019 in “Journal of Health and Allied Sciences” In this study, the petroleum ether extract of Maharanga bicolor and Hibiscus rosa sinensis in Aloe vera gel showed improved hair growth initiation and completion times in rats, suggesting potential hair growth-promoting activity.
3 citations
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January 2019 in “Research journal of pharmacy and technology” This study found no significant differences in hair growth between two formulas of hair tonic from meniran extract, one with a menthol enhancer, despite variations in hair length and weight measurements.
1 citations
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June 2018 in “Pharmaciana” In this study, researchers developed a hair tonic using 7.5% Aloe vera extract and 2.5% licorice extract, finding that the formula with 15% ethanol showed optimum activity by promoting hair growth and increased hair weight in rabbits over 28 days.
3 citations
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January 2014 This study concluded that a green tea extract hair tonic was stable, promoted more hair growth than 2.5% minoxidil, and did not cause skin irritation.
2 citations
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June 2013 in “Herba Polonica” This study found that a methanolic extract of Elephantopus scaber leaves significantly promoted hair growth in rats, suggesting it may have beneficial effects for hair treatment.
January 2012 in “Journal of Natural Remedies” This study found that the aqueous extract of Abrus precatorius leaf promoted hair growth in experimental settings, with effects comparable to 2% minoxidil.
4 citations
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January 2011 in “Der Pharmacia Lettre” This study found that ethanolic extract of Hibiscus rosasinensis flowers may act as a hair growth retarding agent in female rats, potentially useful for hair removal products.
19 citations
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January 2010 in “International Journal of Ayurveda Research” In this study, topical application of Tectona grandis seed extracts on albino mice significantly accelerated hair growth initiation time and increased the percentage of hair follicles in the anagenic phase compared to the standard minoxidil treatment.
January 2008 in “วารสารการแพทย์และวิทยาศาสตร์สุขภาพ (Journal of Medicine and Health Sciences)” This study found that extracts from Clitorea ternatea and Citrus hystrix promoted human hair follicle growth in vitro, although high concentrations of Citrus hystrix extract inhibited growth.
67 citations
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May 2007 in “Journal of Cosmetic Dermatology” This study found that topical formulations including extracts from Cuscuta reflexa, Citrullus colocynthis, and Eclipta alba significantly accelerated hair growth initiation and completion in rats, indicating potential benefits for treating alopecia.
This study observed that low doses of a mixture of Chinese herb extracts promoted hair growth in vitro, while high doses inhibited it.
128 citations
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September 2003 in “Journal of Ethnopharmacology” This study found that the petroleum ether extract from the leaves of Hibiscus rosa-sinensis demonstrated more effectiveness in promoting hair growth in rats compared to the extract from its flowers.
1 citations
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April 1986 in “The Journal of Dermatology” This study found that a topical plant worm extract significantly accelerated hair regrowth in mice without apparent toxicity or side effects.