Is ZzzQuil Melatonin? Understanding the Difference Between ZzzQuil Formulas
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4 min read
According to manufacturer Vicks, the original ZzzQuil formula contains the antihistamine Diphenhydramine HCl, not melatonin. However, the ZzzQuil product line has expanded to include different options, including ZzzQuil PURE Zzzs, which is a melatonin-based sleep aid.