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.
October 2024 in “AL-MIKRAJ Jurnal Studi Islam dan Humaniora (E-ISSN 2745-4584)” This study found that a hair tonic made with 30% ethanol extract from papaya fruit peel effectively promoted hair growth in guinea pigs, with results close to those of a positive control, and contains beneficial compounds like alkaloids and flavonoids.
In this experimental study, hibiscus leaf extract at a 30% concentration showed effectiveness in promoting hair growth on guinea pigs, with measurable increases in hair length and weight by the 21st day.
This study found that the nutraceutical product DERM decreased the pro-inflammatory cytokine IL-6 in mesenchymal stem cells under in vitro conditions.
June 2021 in “World Journal Of Advanced Research and Reviews” In this study, researchers evaluated emulsions made with natural plant extracts and oils on guinea pigs, finding that a specific hydrophilic/lipophilic balance and globule size led to a stable emulsion and stimulated hair growth.