USING HAIR GROWTH ACTIVITY, PHYSICAL STABILITY, AND SAFETY TESTS TO STUDY HAIR TONICS CONTAINING ETHANOL EXTRACT OF LICORICE (GLYCYRRHIZA GLABRA LINN.)

  • Sheila Meitania Utami Department of Herbal, Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia.
  • Joshita Djajadisastra Department of Herbal, Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia.
  • Fadlina Chany Saputri Department of Herbal, Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia.

Abstract

Objective: The purpose of this study was to determine the safety, physical stability, and hair growth activity of ethanol extract of licorice.
Methods: In this study, 2.5%, 5%, and 10% licorice extract was formulated into a hair tonic as a tonic is easier to use and is not sticky like a semisolid
dosage. The hair growth activity test was conducted by rubbing the hair tonic preparations on rabbit’s backs; subsequently, the hair length, hair
thickness, hair weight, and hair density were measured. Quantitative analysis of glycyrrhizic acid from the licorice ethanol extract with a ultraviolet
spectrophotometer showed a level of about 156.65 mg/g or 15.665%. The physical stability test was performed on samples of the tonic stored at low
(4±2°C), room (25±2°C), and high (40±2°C) temperature, and a cycling test was also performed. The safety test was performed using an eye irritation
test that employed the Hen’s egg test–chorioallantoic membrane (HET-CAM) method and a skin irritation test that employed the patch test method.
Results: The hair tonics containing 5% and 10% licorice extract had an equivalent activity of hair growth and even better than the positive control
containing 2% minoxidil. The physical stability test showed that the licorice extract hair tonic has good physical stability. The results of the safety test
showed no skin irritation, whereas the HET-CAM test showed that the hair tonic containing licorice extract showed mild eye irritation.
Conclusions: Licorice ethanol extract hair tonic solutions in concentrations of 2.5%, 5%, and 10% had hair growth activity similar to that of the
positive control (minoxidil). They have a good physical and chemical stability, also safe for topical use, except the 2.5% licorice ethanol extract hair
tonic solution which caused mild eye irritation.

Keywords: Licorice, Hair growth activity, Glycyrrhizic acid, Mild irritation.

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How to Cite
Utami, S., Djajadisastra, J., & Saputri, F. (2017). USING HAIR GROWTH ACTIVITY, PHYSICAL STABILITY, AND SAFETY TESTS TO STUDY HAIR TONICS CONTAINING ETHANOL EXTRACT OF LICORICE (GLYCYRRHIZA GLABRA LINN.). International Journal of Applied Pharmaceutics, 9, 44-48. https://doi.org/10.22159/ijap.2017.v9s1.20_25
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