January 2018 in “International journal for pharmaceutical research scholars” Meniran extract hair tonic may stimulate hair growth in rats, with the version containing 1% menthol being more effective.
January 2019 in “대한피부과학회지” January 2012 in “프로그램북(구 초록집)” 
January 2024 in “http://isrctn.com/” Teak leaf extract hair tonic was tested for hair growth and safety.
Hibiscus leaf extract in hair tonic promotes hair growth effectively.
16 citations,
January 1980 in “Planta Medica” Some natural extracts and one hair tonic can promote hair growth in mice.
37 citations,
January 1993 in “Yakugaku zasshi” Ginkgo biloba leaf extract may help hair regrowth and improve heart health.
19 citations,
January 2010 in “International Journal of Ayurveda Research” Tectona grandis Linn. seeds extract improved hair growth in mice better than minoxidil.
4 citations,
June 2020 in “Cosmetics” Broussonetia papyrifera extract helps hair growth by regulating specific proteins.
1 citations,
June 2020 in “Journal of AOAC INTERNATIONAL” Two new methods accurately measure Aminexil, Pyridoxine, and Niacinamide in hair products.
April 2024 in “Scientific reports (Nature Publishing Group)” Rosemary and neem extract may be an effective natural treatment for dandruff and hair loss.
June 2023 in “MPI (Media Pharmaceutica Indonesiana)” A hair tonic made from kale leaves is effective for hair growth and meets Indonesian standards.
January 2022 in “Buletin penelitian tanaman rempah dan obat/Bulletin komunikasi penelitian tanaman rempah dan obat” The 3% bidara leaf extract hair tonic was most effective for hair growth.
December 2021 in “Jurnal ilmiah Manuntung” The best hair growth results were achieved with a hair tonic containing 5% gotu kola extract and 0.04% garlic extract.
July 2018 in “Media Informasi” The 3:2 combination of pandan and snake plant extracts promotes hair growth effectively and is safe to use.
The 7.5% talok and 2% pare leaf extract hair tonic effectively promotes hair growth, similar to minoxidil.
July 2017 in “Journal of Young Pharmacists” Nothopanax scutellarium leaves can promote hair growth but may mildly irritate the skin.
May 2024 in “Journal of cosmetic dermatology” Heat-treated Limosilactobacillus fermentum with menthol, salicylic acid, and panthenol promotes hair growth and balances scalp microbiome in people with androgenetic alopecia.
4 citations,
October 2017 in “International Journal of Applied Pharmaceutics” Licorice extract hair tonics are effective and safe for hair growth, except for mild eye irritation at the lowest concentration.
1 citations,
October 2019 The 1:5 ratio of fragrant pandan to celery extract best promotes hair growth.
Ceiba leaf extracts significantly speed up hair growth.
Combining oral and topical treatments improves hair growth more than using either alone.
December 2011 in “대한본초학회지(본초분과학회지)” Gyungohkgo-gamibang extract significantly promotes hair growth and thickness.
11 citations,
January 2014 in “International Journal of Trichology” Witch hazel-based hair products improved scalp irritation and were well-tolerated.
December 2023 in “Bulletin of the Medical Institute of Continuing Education” Angelica Dahurica extract helps reduce hair loss and improve hair growth and scalp condition.
June 2022 in “Jurnal Health Sains” Certain plant extracts may help treat hair loss and promote hair growth.
32 citations,
December 2000 in “Phytomedicine” Apple-derived procyanidin B-2 can safely promote hair growth in men.
18 citations,
January 2007 in “Pharmaceutical Biology” Citrullus colocynthis extract is effective for hair growth, comparable to minoxidil.
98 citations,
May 2008 in “Archives of Dermatological Research” Eclipta alba extract helps hair grow faster and more effectively than minoxidil in rats.
67 citations,
May 2007 in “Journal of Cosmetic Dermatology” The herbal formulation promoted hair growth faster and more effectively than minoxidil in rats.