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KMID : 0369820070370020085
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Jorunal of Korean Pharmaceutical Sciences
2007 Volume.37 No. 2 p.85 ~ p.94
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Preparation and Evaluation of Cubic Liquid Crystalline Phase Gel and Cubosome containing Polyethoxylated Retinamide
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Kyung Ki-Yeol
Jee Ung-Kil
Cho Wan-Goo
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Abstract
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The objective of this study is to prepare a stable delivery systems containing polyethoxylated retinamide(PERA) - derivatives of retinoic acid, effective anti-wrinkle and anti-acne agent. Cubic liquid crystalline phase gel (CLCPG) and cubosomes containing various concentrations of PERA were prepared to investigate the physicochemical properties. Furthermore, stability and transdermal absorption efficacy of the CLCPG containing PERA were investigated in comparison with oil-in-water (O/W) emulsions which are predominantly used as a topical formulation. CLCPG increase the stability of PERA in comparison with O/W emulsion. For tropical application, CLCPG containing PERA shows higher moisturizing effect than that of O/W emulsion. In skin permeation test, CLCPG shows higher PERA deposit on epidermis. With its specific physicochemical property caused by the glyceryl oleate, CLCPG itself could be used for stabilizer of various actives and applied as an effective delivery system for topical application. Cubosome, nano-sized dispersed CLCPG, is also expected to be applied in a various field of industry like food, cosmetics and pharmaceuticals.
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KEYWORD
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Polyethoxylated retinamlde, Cubic liquid crystalline phase gel, Cubosome, Delivery, Glyceryl oleate, Anti-aging
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