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Objective
To develop a rapid, simple and efficient ultraviolet–visible (UV–vis) spectrophotometric method for the quantification of phenylethyl resorcinol (PR), a potent skin‐lightening agent, incorporated into new topical nanoemulsions, and to validate this method according to International Commission for Harmonization (ICH) guidelines.
Methods
UV–vis spectrophotometric method for quantification...
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