Pure Peptide Labs and QSC, side by side
The two ledgers differ on 3 of 8 checks. Pure Peptide Labs verifies where QSC does not on: third-party laboratory testing; certificates of analysis open to the public; certificates tied to a specific lot. Tally: Pure Peptide Labs 8 of 8, QSC 5 of 8.
Where the two files differ in detail
| Pure Peptide Labs | QSC | |
|---|---|---|
| Status at check | Operating | Operating |
| Location as stated | Cedar Park, TX | Qingdao, Shandong |
| Founding year as stated | 2024 | 2008 |
| Laboratory named | Freedom Diagnostics, Kovera Labs, MDx BioAnalytical Laboratory, Precision Mass Spec | Janoshik Analytical Laboratories |
| Methods on the certificate | MS, endotoxin | HPLC, MS |
| Payment methods | card, ach | crypto, wire |
| Ships abroad | No | Yes |
| Published contact | phone, street address | email, phone, street address |
| FDA warning letter | None on record | None on record |
Full files: Is Pure Peptide Labs legit? · Is QSC legit? · pick two other names. Both companies sell material labeled for laboratory research use only; this page compares their paperwork and nothing else.
Other pairings with these files
All pairings
Licensed Peptides vs Pure Peptide Labs8 of 8 · 8 of 8 checks verifiedA- Ascension Peptides vs Pure Peptide Labs8 of 8 · 8 of 8 checks verifiedB+
Paramount Peptides vs Pure Peptide Labs8 of 8 · 8 of 8 checks verifiedB+
Peptide Perfection vs Pure Peptide Labs8 of 8 · 8 of 8 checks verifiedB+
Reader questions
Answered from the filePure Peptide Labs or QSC: which file verifies on more checks?
Pure Peptide Labs verifies on 8 of 8 against 5. The two ledgers differ on 3 of 8 checks. Pure Peptide Labs verifies where QSC does not on: third-party laboratory testing; certificates of analysis open to the public; certificates tied to a specific lot. Tally: Pure Peptide Labs 8 of 8, QSC 5 of 8. We do not declare a winner; the ledgers are printed so you can weigh the gaps yourself.
Do both publish a certificate anyone can open?
Pure Peptide Labs: yes, lot-specific yes. QSC: not verified, lot-specific not verified. "Not verified" means we could not open such a document without an account or an order.
Why is there no price row?
Price carries no weight on this desk and does not appear in a ledger. A discount does not make an unverified certificate any more verifiable. The listed price position for each supplier sits in the source record on its own file.