Is Isopure protein third-party tested?
Last reviewed 2026-10-11. Every certificate entry below was read in the programme's own directory on the date printed beside it, and each links its source. Product label figures come from the product data, read 2026-08-30.
Not Isopure Zero Carb, as far as the public directories show. NSF Certified for Sport has no Isopure entry, and Informed Choice lists only an Isopure LOW CARB protein sold in Asia.
Certificates, programme by programme
| Programme | Result | Checked |
|---|---|---|
| NSF Certified for Sport | No entry found | 2026-10-11 |
| Informed Choice | Listed (1 protein entry shown below) | 2026-10-11 |
| Clean Label Project | No entry found | 2026-10-11 |
NSF Certified for Sport: no entry found
Checked 2026-10-11: no entry for this brand in the NSF Certified for Sport directory (searched by brand; the brand filter named 323 brands on the check date). That is a statement about what the programme publishes, not a finding about the product.
Informed Choice: listed
Checked 2026-10-11 in the Informed Choice directory.
The other two Isopure entries are creatine products. No Zero Carb entry was found.
Clean Label Project: no entry found
Checked 2026-10-11: no entry for this brand in the Clean Label Project directory (read the certified-brand index, which named 154 brands on the check date). That is a statement about what the programme publishes, not a finding about the product.
The products we track
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- Isopure Zero Carb Protein Powder, Unflavoured, 1360 g, 25 g protein a serving — no published testing found. Match to the certificate: unverified. Check on Amazon →
A certificate covers the package sizes its listing names. Read the size on the listing against the tub you are offered. Exact Amazon links go only to listings sold by Amazon.com; the others are searches.
Read next
- Every protein product we checked, with its certificate and package-size match
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This page restates published testing records with attribution. It makes no health, benefit or treatment claim, and says nothing about whether any product is safe or good for you. A certification record describes tested lots, not a permanent grade.
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