NAC test results
Every NAC bottle a public source has named, with the lab numbers where a document printed them. We test nothing ourselves: each figure links to the document that printed it.
Records retrieved Oct 23, 2026 3 bottles 0 with a printed result
The short answer
From 2 public sources- None of 3 NAC bottles has a printed result for NAC in the public record. 3 are certification listings with no numbers. A listing means a certifier named the bottle; it publishes no numbers.
Every NAC bottle
Grouped by what the public record is. A group heading opens that publisher’s page, filtered to this compound.
3 bottles
Evidence score and coverage from rubric-1| Bottle | Public record | Evidence score | Coverage |
|---|---|---|---|
| Named in a directory, not yet scored3 | |||
| Designs for SportNAC 900 | Listed by NSF Certified for Sport | Not scored | None |
| DYNASPRINTRecovery NAC | Listed by Informed Sport | Not scored | None |
| Precision Engineered by Holland & BarrettN-Acetyl Cysteine 600mg | Listed by Informed Sport | Not scored | None |
Who published these records
Eight public sources; 2 name a NAC bottle. Choosing one opens its page, filtered to NAC.
- LabdoorNo NAC record. Assay numbers when the review page or certificate prints them, with the lot and the test date when printed.
- FDA / openFDANo NAC record. A recall: its number, class, status, dates, firm, lots and the reason in the agency’s words.
- USPNo NAC record. That a finished product is currently USP Verified.
- NSF Certified for Sport1 listing. A directory listing: the product name and the company.
- Informed Sport2 listings. A directory listing on the October 2026 certified list.
- Informed ChoiceNo NAC record. A directory listing on the October 2026 certified list.
- BSCGNo NAC record. A directory listing, sometimes with the lot it names.
- NutrasourceNo NAC record. A directory listing in the public catalog.
What is not here
ConsumerLab is not one of the sources: its reviews are paywalled, and nothing on this page is estimated from ConsumerLab. Anresco, InvaPharm, Eurofins appear as the laboratory on a Labdoor certificate, not as a publisher.
What each source publishes, and how the evidence score reads it
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