Activity And Safety Tests Study Of Ethanolic Extract Of Hibiscus Leaves (Hibiscus Rosa Sinensis L.) Hair Tonic In Hair Growth Of Male Rabbits
January 2014
TLDR The 10% hibiscus leaf extract hair tonic promotes better hair growth than 2% minoxidil but can irritate eyes.
The study evaluated the hair growth activity, physical stability, and safety of hair tonic formulations containing 2.5%, 5%, and 10% ethanolic extracts of hibiscus leaves (Hibiscus rosa-sinensis L.) on male rabbits. The 10% hibiscus leaf extract hair tonic demonstrated superior hair growth activity compared to 2% minoxidil, a positive control. Physical stability tests indicated that the hair tonic maintained good stability under various temperature conditions. Safety tests revealed no skin irritation, but the hair tonic caused eye irritation.