COA & Purity Records

Every batch we sell is tested by Janoshik Analytical, an independent laboratory we do not own and do not pay per result. The report for each lot is published below, alongside the figure printed on the vial.

Current lots

Material Strength Lot Purity (HPLC) Measured fill Label fill Laboratory
BPC-157 10 mg CS-bc10-0309 99.789% 11.21 mg 10 mg Janoshik
TB-500 10 mg CS-tb10-0408 99.766% — 10 mg Janoshik
GHK-Cu 50 mg CS-gu50-0309 99.780% 60.04 mg 50 mg Janoshik
NAD+ 500 mg CS-na500-0403 not assayed 529.47 mg 500 mg Janoshik
Retatrutide 10 mg CS-re10-0322 99.786% — 10 mg Janoshik
Tirzepatide 10 mg CS-ze10-0408 99.764% — 10 mg Janoshik

Measured fill is higher than label fill

Every lot we hold was independently measured above the weight printed on its label, by between 6% and 21%. That is documented in the reports above, not a marketing figure. We publish the measured number beside the label number so you can check it yourself.

How to verify these independently

Janoshik reports carry a verification key. You can confirm any report directly with the laboratory at janoshik.com/verify without going through us. We would rather you did.

What these reports do not cover

Publishing only the favourable parts of a test is how this category lost its credibility. So, plainly:

  • NAD+ has no purity figure. Its report was an identity-and-amount test only, with no purity assay performed. We therefore do not print a purity percentage for NAD+ anywhere, and you should be sceptical of any vendor who does without showing the assay.
  • TB-500 carries no CAS number or molecular weight. Its report is headed “TB-500 (TB4)” and does not distinguish the seven-residue fragment from full-length thymosin β4. Until the laboratory confirms which was tested, we publish neither identifier rather than guess at one.
  • Purity figures apply to the specific lot named. When stock rotates to a new lot, this page and the product pages change with it.

Research use only

Research use only. This product is sold strictly for laboratory, in-vitro and analytical research by qualified professionals. It is not a drug, food, dietary supplement, medical device or cosmetic, and it has not been evaluated by the FDA. It is not for human or animal use of any kind. By purchasing, you confirm you are acquiring this material solely for research purposes on behalf of a laboratory, institution or research organisation.

Verify a lot

Check the vial in your hand

Enter the lot code printed on the label. You will get the laboratory record for that exact batch.