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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
The effect of compounds 1 and 8 on cell viability in normal human epidermal keratinocytes (NHEKs). NHEKs were exposed to 1, 8, and vehicle at the indicated concentrations for 24 h. Cell viability was determined by MTT assay.