4 citations
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October 2017 in “International Journal of Applied Pharmaceutics” This study found that hair tonics with 5% and 10% licorice extract promoted hair growth in rabbits similarly to 2% minoxidil and were generally safe, although they caused mild eye irritation at the 2.5% concentration.
This study found that gels containing glycyrrhizic acid and aqueous Glycyrrhiza glabra extract significantly reduced underarm hair growth in terms of area, thickness, length, and number compared to their gel bases.
1 citations
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June 2018 in “Pharmaciana” In this study, researchers developed a hair tonic using 7.5% Aloe vera extract and 2.5% licorice extract, finding that the formula with 15% ethanol showed optimum activity by promoting hair growth and increased hair weight in rabbits over 28 days.
August 2026 in “American Journal of Chemistry and Pharmacy” This review suggests that licorice extract may be a safe and effective adjunct treatment for skin disorders like acne, rosacea, and atopic dermatitis, though higher-quality trials are needed.
July 2024 in “Journal of Eastern – Western Pharmacology and Pharmacy” This study found that Tribulus terrestris L. extract promoted significant hair growth and reduced skin inflammation in Wistar rats, while Urtica cannabina extract, Glycyrrhiza glabra extract, and Tribulus terrestris L. extract all led to uniform hair growth over 28 days compared to other tested extracts.