Journal
COSMETICS
Volume 10, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/cosmetics10010036
Keywords
icariin; Epimedium L; extract; glucosamine sulfate; osteoarthritis; topical application; in vitro release
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The study aimed to develop a topical formulation for arthritis relief. A combination of icariin from Epimedium L. extract and glucosamine sulfate was tested. Permeation studies confirmed their potential for skin permeation, although in vitro release did not accurately reflect skin permeation. The release of icariin was higher for the plant extract (15.0-19.0%) and pure substance (29.0-35.0%) compared to oral administration (12.0%), indicating the potential superiority of topical application. Physicochemical parameters affecting release and performance were addressed. This preliminary research and permeation analysis show promising prospects, but further investigation is needed.
The aim of this study was to develop a topically applied formulation with the potential to alleviate arthritis ailments. A combination of two active ingredients, icariin from Epimedium L. (Species: Epimedium Koreanum) extract as a potential promoter of chondrogenesis and glucosamine sulfate as a precursor of cartilage tissues, was tested. In permeation studies, the potential for skin permeation of both substances was confirmed; however, the in vitro release test did not accurately reflect the degree of skin permeation. The in vitro release of icariin was at a level of 15.0-19.0% for the plant-extract-derived icariin and 29.0-35.0% for the pure substance. The level of glucosamine sulfate release was 38.4% (on average). For icariin of both origins, the release results were higher than those obtained via oral administration (about 12.0%), which shows the potential superiority of topical application. In addition, the physicochemical parameters that affect the in vitro release and performance of topical formulations were addressed. This preliminary research and permeation analysis of the formulation produced a promising picture of its prospects regarding arthritis treatment, although further investigation is needed.
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