This site cites this specific source directly for its Mullein ingredient claim — worth checking what it actually covers.
WebMD's mullein overview is a general consumer-reference page on the herb's traditional uses and safety profile — worth reading it as background context, not a clinical trial of this specific formula.
This site is direct that its references cover the individual botanicals, not this finished product — worth reading this specific WebMD source within that same stated limit.
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