Lavender essential oil nanoemulsion gel as skin lightener: green formulation, full characterization, anti-melanogenesis effect, and in-vitro/in-vivo safety profile assessment

Objective(s): In this study, to improve anti-melanogenesis properties, the green method based on an ultrasonic approach was utilized to prepare lavender essential oil (LEO) nanoemulgel.Material and Methods: Nano-emulsion green preparation, physico-chemical characterization, inspection morphology, an...

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Bibliographic Details
Main Authors: Mahmoud Omidi, Katayoun Morteza-Semnani, Majid Saeedi, Mina Frahmand, Marzie Kamali, Esmaeil Mohammadian, Seyyed Mohammad Hassan Hashemi
Format: Article
Language:English
Published: Mashhad University of Medical Sciences 2025-07-01
Series:Nanomedicine Journal
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Online Access:https://nmj.mums.ac.ir/article_25574_3e43b43404761cc0680c45f711979309.pdf
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Summary:Objective(s): In this study, to improve anti-melanogenesis properties, the green method based on an ultrasonic approach was utilized to prepare lavender essential oil (LEO) nanoemulgel.Material and Methods: Nano-emulsion green preparation, physico-chemical characterization, inspection morphology, animal safety study, cellar toxicity and anti-pigmentation test were performed.Results: The obtained results showed that with a decline in HLB value (Hydrophilic–lipophilic balance), the mean particle size declined from 157.600±3.798 to 85.566± 2.227 nm (P< 0.05). The evaluations performed with the accelerated stability test (freeze-thaw cycle) showed stability for nanoemulgel. Other factors, such as pH, spreadability, and, viscosity were also measured. In vitro cytotoxicity studies for the revealed LEO-nanoemulsion, on the HFF normal cell line showed less toxicity (73%) than pure LEO. Moreover, LEO-nanoemulsion had a higher cytotoxic impact on B16F10 melanoma cancer cells than pure LEO. The inhibitory activity of this LEO-nanoemulsion was evaluated in melanin content, which indicated that melanin synthesis is more inhibited than LEO. Furthermore, the evaluation of the inhibitory activity presented that the inhibition of L-dopa auto oxidation (87.33± 2.45%) is better than that of LEO (74.22± 3.26%) at a concentration of 5000 µg/ml. It should be noted that no skin irritation was observed with the histo-pathological examination on Wistar rat and the dermal irritation study for the LEO-nanoemulgel.Conclusion: The results of the present study can be very useful for the introduction and local administration of LEO nanoemulgel for the management of hyperpigmentation conditions.
ISSN:2322-3049
2322-5904