Melanotan II (MT-2) × Growth Guys — Lab Test, December 2024
Janoshik Labs publishes a public verification portal. Any test attributed to this lab can be looked up and confirmed directly with the lab — so this result doesn't rest on our review alone.
This certificate carries no lookup code.
Test results
This is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.
About this test
Label 10 mg · Lab measured 12.8 mg
128% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 3.2 mg using the measured mass, against 2.5 mg on the label — 28% more.
One vial from this lot was weighed by the laboratory, not yours. This page reports what the certificate says; it does not recommend a dose.
Independent HPLC purity analysis of Melanotan II from growthguys.is, performed by Janoshik Labs on December 30, 2024. Reported purity: 99.789%. Net content: 12.8 mg against 10 mg labeled (128% of label). Tested content exceeds the labeled amount by 28%. Batch MT201. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Other lots of Melanotan II (MT-2) from growthguys.is
| Lot | Tested | Lab | Purity | vs label | Status |
|---|---|---|---|---|---|
| MT203 | 9 Mar 2026 | Janoshik Labs | 99.764% | 89% | Unverified |
| MT202 | 9 Jul 2025 | Janoshik Labs | 99.739% | 107% | Unverified |
Batches this shop has published a certificate for, newest first. A lot whose printed value cannot identify a batch is not listed.
Have you tested this peptide?
Submit your third-party lab test to help the community verify purity claims. Every report is reviewed before publication.
Community discussion