Great Northern Peptides PT-141
Evidence Score 63/100 · 1 of 1 PT-141 lab reports confirmed by the issuing lab
As of October 10, 2026, Great Northern Peptides lists PT-141 in 10 mg. It publishes 1 PT-141 lab report; 1 is confirmed in the issuing lab's own records, the newest dated May 20, 2026. Its confirmed reports cover purity testing (HPLC and mass spec). Code PEPASSESS gives 10% off.
PT-141 lab reports confirmed by the issuing lab
- May 20, 2026Freedom Diagnosticspurity, identityview report ↗
PT-141 price at Great Northern Peptides
- From
- —
- Best per mg
- —
- Typical per mg
- $4.40/mg
- Sizes
- 10 mg
From Great Northern Peptides's own store, as of October 10, 2026; shipping and discounts not included.
Other PT-141 sellers with lab-confirmed reports
| Shop | Score | Per mg | vs typical | Code discount | Code | |
|---|---|---|---|---|---|---|
| Solyn | 100 | $3.08 | 30% below | — | — | Coupon codes |
| Licensed Peptides | 95 | — | — | — | — | Coupon codes |
| BioLongevity Labs | 93 | — | — | 15% | Shop ↗ | |
| PeakForm Peptides | 90 | — | — | — | — | Coupon codes |
| Direct Peptides | 89 | $8.90 | 102% above | — | — | Coupon codes |
| Panda Peptides | 88 | $2.80 | 36% below | — | — | Coupon codes |
Great Northern Peptides PT-141 questions
Is Great Northern Peptides's PT-141 lab tested?
Yes. As of October 10, 2026, Great Northern Peptides publishes 1 PT-141 lab report, and PepAssess matched 1 to the issuing lab's own records (Freedom Diagnostics). The newest confirmed report is dated May 20, 2026.
Is there a Great Northern Peptides coupon code for PT-141?
Yes: PEPASSESS (10% off), entered at checkout on greatnorthernpeptides.com, as of October 10, 2026.
Who else sells lab-tested PT-141?
As of October 10, 2026, the highest-scoring PT-141 sellers with a lab-confirmed report, besides Great Northern Peptides: Solyn (100/100, 2 confirmed), Licensed Peptides (95/100, 1 confirmed) and BioLongevity Labs (93/100, 6 confirmed).