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.
9 citations
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October 2019 in “Journal of Physics Conference Series” This study formulated two herbal shampoos using natural extracts and reported that their physicochemical properties were comparable to commercial shampoos.
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.
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.
November 2025 in “Journal of English Language and Education” In this study, researchers found that a hair tonic formulated with 2% guava leaf extract demonstrated strong consumer acceptance and safe physicochemical characteristics among university students, showing potential as a natural alternative for reducing hair loss.