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.
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.
January 2026 in “Journal of Innovative and Creativity (Joecy)” This study investigated hair growth tonics made with celery leaf extract and found that 4% and 9% concentrations maintained better cyclic stability than 14%, supporting their potential use in herbal cosmetic development due to favorable physicochemical stability.
This study tested a natural hair dye made from papaya seed extract, celery leaf, and avocado, finding color change in animal hair but also noting tissue changes like hyperkeratosis.
1 citations
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January 2021 in “JIFFK Jurnal Ilmu Farmasi dan Farmasi Klinik” In this study, the researchers found that while the chitosan-alginate gel base supported hair growth, the addition of 0.5% celery extract did not enhance growth, likely due to its low concentration.