Marniza, E., Dewi , R., & Amalia , A. (2026). Analysis of Hydroquinone and Mercury in Whitening Hand and Body Lotions Marketed through Offline and Online Channels Using Spectrophotometric Methods. Journal of Pharmaceutical and Sciences, 9(3), 2721–2731. https://doi.org/10.36490/journal-jps.com.v9i3.1708