This site states this specific wording directly: brand states US manufacturing. We note this is a brand claim, not independently audited by us.
Explicitly naming this as unaudited, rather than presenting it as a confirmed fact, is worth crediting as more transparent than a bare "Made in USA" badge with no qualifier.
Worth reading this alongside the separate FDA-registration, GMP and naturally-sourced badges — each carries its own specific qualifier, worth checking individually rather than assuming one covers all four.