One A Day
Mass-market multivitamin traceable to a named US factory - rare in this category.
Status: Watchlist
- Website
- oneaday.com
- HQ
- Germany
- Manufacturing
- USA
- Ownership type
- Conglomerate subsidiary
- Parent
- Bayer AG
- Status since
- 2026-08-25
Ownership
Long-held Bayer consumer health brand.
Why Watchlist
Genuinely own-plant and traceable to a named facility, better than most of this set, but no third-party verification of contents on any SKU.
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