Updated Oct 24, 2026
Glyphosate in vaccines, including the newborn Hep B shot
NewA 2016 independent test reported glyphosate, the weed killer in Roundup, in the Hep B shot many babies get on day one. We dug into what has (and hasn't) happened since.
Glyphosate, the main chemical in Roundup, is now on VaxCalc. It's the only ingredient we cover that isn't on any FDA vaccine label. It's here because a 2016 independent test reported finding it in the hepatitis B shot many babies get on their first day, and in four other childhood vaccines.
So we dug into what has (and hasn't) happened since. Was the finding ever confirmed? Did anyone retest the same vaccine? What have the FDA and the maker said? And how much might a newborn actually get?
The answers are in the full research, for members only.