Vendor and compound
Tirzepatide from Northline Labs
Northline Labs lists Tirzepatide at $7.00 per mg, 4% over the $6.75 peer median. 1 third-party certificate for this compound from this vendor is on file, assayed by Horizon Analytical, averaging 99.29% purity. The cheapest listed price for Tirzepatide anywhere in the index is $1.90 per mg at ZC Labs.
All Tirzepatide vendors · Northline Labs profile · scores 68 of 100, rank 21 · 1 certificate for this compound · verified 5 Oct 2026
What it costs
| Vial | Listed price | Per mg | vs peer median | Listing |
|---|---|---|---|---|
| 10 mg | $69.99 | $7.00 | +4% | Tirz GLP-2 – Premium Research Peptide |
Read from the vendor’s own store and normalised per milligram, because a smaller vial at a lower sticker price is usually the dearer peptide.
What the laboratory found
| Lot | Assayed | Purity | Label → assayed | Laboratory | Record |
|---|---|---|---|---|---|
| NLL-9887337 | 12 May 2026 | 99.29% | 10 mg → 10.22 mg | Horizon Analytical | Open |
Other vendors selling Tirzepatide
| Vendor | Score | Per mg | Certificates for this compound |
|---|---|---|---|
| Origin Labs | 89.1 | — | 1 |
| Next Gen Peptides | 87.7 | $2.00 | 12 |
| ZC Labs | 87.2 | $1.90 | 2 |
| Amino Club | 86.1 | $2.00 | 0 |
| Bench Grade Peptides | 79.4 | $4.50 | 3 |
| Hydro Research Peptides | 78.7 | $8.50 | 6 |
| Stealth Research Labs | 78.1 | $4.50 | 1 |
| One Aminos | 78 | $5.00 | 1 |
Ordered by overall evidence score. See every vendor listing Tirzepatide.
Questions
Is Tirzepatide from Northline Labs third-party tested?
Yes. 1 certificate for Tirzepatide from Northline Labs is on file, signed by Horizon Analytical. Each names a lot, prints the assayed mass against the labelled mass, and links to the document it was read from.
How much does Tirzepatide cost at Northline Labs?
$7.00 per milligram, from 10 mg at $69.99. The peer median across every vendor we price for Tirzepatide is $6.75 per mg, so this is +4% against the market. Prices are normalised per milligram so vials of different sizes compare fairly.
Is Northline Labs a good place to buy Tirzepatide?
Northline Labs scores 68 of 100 on the published rubric and ranks 21 overall, computed from its documentation rather than from opinion. For Tirzepatide specifically it has 1 certificate on file. ZC Labs lists it cheaper at $1.90 per mg.