Nuun
Facts-only compliance record. Every entry is source-backed and dated.
Research Note
Owned by Nestlé Health Science (2021 acquisition). PFAS finding has not yet generated regulatory action.
Event Timeline
No published COAs or top-tier certifications
No published Certificates of Analysis. No NSF, USP, Informed Sport, ConsumerLab, or Clean Label Project certifications identified as of April 2026.
Informed Sport certification on hold; Podium Endurance voluntarily withdrawn
Nuun Hydration's Informed Sport certification is listed as "on hold." Podium Series Endurance was voluntarily withdrawn from the Informed Sport programme; batches produced since withdrawal are NOT tested. Significant gap for a brand marketed heavily to athletes.
PFAS (forever chemicals) detected at 18 ppm fluorine
Mamavation/Environmental Health News testing detected 18 ppm fluorine (indicating PFAS presence) in Nuun products. PFAS are linked to cancer, birth defects, and immune dysfunction per CDC/EPA. Of 40 electrolyte products tested, 23% had detectable PFAS.
Manufacturer Q&A
We asked Nuun five questions about sourcing, manufacturing and testing. Answers appear here in the brand's own words, and only when we hold a dated screenshot of the reply. Unanswered questions stay visibly unanswered — we do not fill them with our own research.
Questions sent September 21, 2026. No reply on record.
Q1 · Sodium source
What is the sodium source used in this product (e.g. sodium chloride, sodium citrate, sea salt — specify grade/supplier type if you disclose it)?
No response yet — Requested 2026-09-21.
Q2 · Mineral sourcing process
Describe your sourcing process for sodium and other minerals (how suppliers are selected/qualified).
No response yet — Requested 2026-09-21.
Q3 · Country of manufacture
Country of manufacture for the finished product (or primary manufacturing site)?
No response yet — Requested 2026-09-21.
Q4 · Country of mixing / packaging
Country of mixing / packaging, if different from manufacture?
No response yet — Requested 2026-09-21.
Q5 · Third-party testing
What third-party testing do you claim (labs, analytes, frequency)? Link or attach a current COA policy if public.
No response yet — Requested 2026-09-21.
“Verified reply” means we have a dated screenshot of the brand stating this. It is not a score, a rating, or an endorsement, and a brand's silence here is not itself a finding.