PepAssess

Great Northern Peptides Retatrutide

Evidence Score 22/100 · 1 of 1 Retatrutide lab reports confirmed by the issuing lab

As of October 2, 2026, Great Northern Peptides lists Retatrutide in 10, 20, 40 mg from $90. It publishes 1 Retatrutide lab report; 1 is confirmed in the issuing lab's own records, the newest dated July 2, 2025. Its confirmed reports cover purity testing (HPLC and mass spec). Code PEPASSESS gives 10% off.

10% off
Use code PEPASSESS at checkout on greatnorthernpeptides.com
Shop Retatrutide at Great Northern Peptides ↗

Retatrutide lab reports confirmed by the issuing lab

Retatrutide price at Great Northern Peptides

From
$90
Best per mg
—
Typical per mg
$6.00/mg
Sizes
10, 20, 40 mg

From Great Northern Peptides's own store, as of October 2, 2026; shipping and discounts not included.

Other Retatrutide sellers with lab-confirmed reports

Great Northern Peptides Retatrutide questions

Is Great Northern Peptides's Retatrutide lab tested?

Yes. As of October 2, 2026, Great Northern Peptides publishes 1 Retatrutide lab report, and PepAssess matched 1 to the issuing lab's own records (Freedom Diagnostics). The newest confirmed report is dated July 2, 2025.

How much is Retatrutide at Great Northern Peptides?

From $90 (10, 20, 40 mg), as of October 2, 2026. Prices come from Great Northern Peptides's own store and exclude shipping and discounts.

Is there a Great Northern Peptides coupon code for Retatrutide?

Yes: PEPASSESS (10% off), entered at checkout on greatnorthernpeptides.com, as of October 2, 2026.

Who else sells lab-tested Retatrutide?

As of October 2, 2026, the highest-scoring Retatrutide sellers with a lab-confirmed report, besides Great Northern Peptides: Direct Peptides (89/100, 113 confirmed), Platinum Lion (87/100, 6 confirmed) and Peptides Optimized (87/100, 87 confirmed).