UC cosmetic scientist receives grant to explore skin permeation of chemical agents

A researcher at the University of Cincinnati is looking at ways to make products such as anti-aging and skin lightening creams, lotions, and gels more effective.

"We are attacking problems that haven't yet been solved in skin permeation," says University of Cincinnati cosmetic scientist Gerald Kasting, the principal investigator on a National Science Foundation (NSF) grant that supports academic and industry partnerships.

Kasting, a professor in UC's James L. Winkle College of Pharmacy, and co-investigator Johannes Nitsche at the University at Buffalo have been awarded a three-year, $409,000, NSF GOALI grant, in partnership with the Cincinnati cosmetics giant Procter & Gamble Company (P&G), to determine what happens when certain chemical agents are deposited on the skin.

The funds, Kasting says, come from the government, but a GOALI grant (or Grant Opportunities for Academic Liaison with Industry) is extra academic support for research that directly impacts the industry. "This is to everyone's advantage because it helps spur academic-industry partnerships."

Skin permeation is a field of study in which Kasting and Nitsche have been engaged for 20 years, with their prior predictive permeation models lauded as among the best in the field of pharmaceutical and cosmetic sciences. Their work spans the study of skin permeation across the board, from beneficial cosmetic products and topical medicines to pollution and hazardous chemical agents in the workplace.

This grant is the third in a series of federal grants that partnered UC's Kasting with P&G and is focused on the skin permeation of chemical agents such as niacinamide, a form of vitamin B, which are used in topical cosmetic creams. The scientific methodology is being split between the two researchers, with UC conducting preclinical experiments on excised human skin and certain skin keratins. Keratins are one of a family of fibrous structural proteins that are the key material making up skin, hair, and nails. Keratin also protects skin cells from damage or stress.

"We image the skin to determine what physical form the chemical agents are in and how that impacts the rate at which they permeate the skin," Kasting says, adding that keratin binding studies are conducted to gauge the influence of skin proteins on permeation rates and their role in what is termed the "reservoir function" of the skin.

The University at Buffalo has responsibility for the computer modeling aspect of the study.

Our work impacts how products like gels and sprays and rinse off products are formulated and bears on the duration of action of topical drugs including corticosteroids and retinoids. Through modeling we can predict how best to get the beneficial components into the skin and estimate the rates at which any hazardous components might also get in."

Gerald Kasting, Cosmetic Scientist, University of Cincinnati  

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