July 2023 in “Research journal of pharmacy and technology” In this study on male rabbits, a hair tonic formulated with delipidated ethanol extract of Capsicum frutescens L. leaves at concentrations of 5%, 10%, and 20% promoted hair growth more effectively than a placebo and similar to 2% Minoxidil at the highest concentration.
November 2022 in “Journal of Advances in Pharmacy Practices” This study found that a 5% concentration of terentang stem bark extract was the most effective in promoting hair growth in male rabbits.
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January 2008 in “Proceedings of the 9th World Rabbit Congress, Verona, Italy, 10-13 June 2008” This study found that androgenic hormone levels did not explain growth differences between furless and furred male rabbits, despite a potential growth advantage in furless rabbits.
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June 1967 in “The journal of nutrition/The Journal of nutrition” This study found that essential fatty acid deficiency in rabbits leads to significant degeneration of gonadal tissue, possibly due to impaired anterior pituitary gland function.
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December 2022 in “Pharmaceuticals” This study found that a sub-fraction of Noni fruit, FEA-3, showed hair growth-promoting effects in a rabbit model of androgenic alopecia, similar to Minoxidil.