TLDR Sea hibiscus leaf extract at 30% concentration in a hair tonic significantly increased hair growth in guinea pigs.
The study aimed to formulate a hair tonic using ethanol extract from sea hibiscus (Hibiscus tiliaceus L.) leaves and evaluate its effectiveness in promoting hair growth on guinea pigs. The experiment involved 5 groups, including a negative control, three different concentrations of the extract (20%, 25%, 30%), and a positive control using minoxidil. Over 21 days, the 30% sea hibiscus extract showed the most significant hair growth, with an average hair length of 17.2633 mm and weight of 0.145 g, demonstrating a notable difference compared to other formulations (p < 0.05).
March 2022 in “Journal of drug delivery and therapeutics” Sea hibiscus leaf extract at 30% concentration in a hair tonic significantly increased hair growth in guinea pigs.
Hibiscus leaves and apple skin could be effective in hair tonics to prevent hair loss.
Hibiscus leaf extract in hair tonic promotes hair growth effectively.
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September 1999 in “The New England Journal of Medicine” Finasteride and minoxidil are effective for hair loss, but continued research is needed for better treatments.
