How do I verify a Next Level Labs peptide COA?

Match the lot number printed on your vial to the certificate of analysis published on this page. Each COA names the independent lab, the batch, the HPLC purity percentage, and the mass-spec identity confirmation for that exact lot, so a real report always maps to your specific vial.

Is Next Level Labs legit?

Yes, and it is designed to be self-verifiable. Every batch is independently tested by HPLC and LC-MS and graded by Finnrick, not tested in-house, and the lot number on each vial ties to that batch's own published COA. If your own independent test contradicts the published COA, you get a full refund and keep the vial.

Who tests Next Level Labs peptides?

Independent laboratories run the HPLC and LC-MS analysis, and Finnrick, the research community's independent grading body, assigns the grade. Next Level Labs does not grade its own numbers.

LAB REPORTS, COA LIBRARY

Every product. Every report.

Every batch we sell is third-party HPLC tested and independently graded by Finnrick, the research community's vendor grading body. The lot number printed on your vial ties back to that batch's Finnrick grade and its per-batch COA. Current lots also carry a full Freedom Diagnostics HPLC + LC-MS certificate. Reports below are available on request, matched to your vial lot.

THE GUARANTEE

Test it yourself. If a vial doesn't match our published Finnrick COA, full refund and you keep the vial.

Retatrutide
LOT 071426, 99.87% PURITY
FINNRICK A+ · 10.0 Freedom Diagnostics COA on file, on request
GHK-Cu
NLL-GHK-2604
FINNRICK A · 9.1 Report on file, available on request
CJC-1295 + Ipamorelin
LOT 071426, 99.86% PURITY
FINNRICK A · 9.1 Freedom Diagnostics COA on file, on request
CJC-1295 with DAC
NLL-DAC-2604
FINNRICK A · 9.1 Report on file, available on request
Wolverine Stack
NLL-WOLV-2604, 99.80% PURITY
FINNRICK A · 8.0 Report on file, available on request
Tesamorelin
NLL-TESA-2604
FINNRICK A · 9.1 Report on file, available on request
MOTS-C
NLL-MOTS-2604, 99.60% PURITY
FINNRICK A · 9.1 Report on file, available on request
KLOW Blend
LOT 062226, 99.83% PURITY
FINNRICK A · 9.1 Freedom Diagnostics COA on file, on request
NAD+
NLL-NAD-2604
FINNRICK A · 9.1 Report on file, available on request
Kisspeptin-10
NLL-KISS-2604, 99.55% PURITY
FINNRICK A · 9.1 Report on file, available on request
Glutathione
NLL-GLUT-2604
FINNRICK A · 9.1 Report on file, available on request
Bacteriostatic Water
BAC-2604, USP GRADE
USP GRADE Spec sheet available on request

ABOUT FINNRICK

The independent peptide grading consortium.

Finnrick is the research community's independent grading body for commercial peptide vendors. Samples are purchased blind, run via HPLC, and scored on purity, quantity accuracy, and batch identification. Final grades range from A+ (great) to F (fraud).

NLL only sources from a Finnrick A-rated supplier. Twenty samples have been independently tested across the line, with an average score of 9.1 of 10. Per-SKU grades shown above are direct Finnrick results. Our top SKU carries a perfect A+ · 10.0.

A+

Great

7+ avg

Good

6+ avg

Okay

5+ avg

Poor

4+ avg

E / F

Bad / Fraud

below

Score is the sum of three components: purity (0 to 4), quantity accuracy (0 to 4), and batch identification (0 to 2). Test it yourself. If a vial doesn't match our published Finnrick COA, full refund and you keep the vial.

All NLL products are sold for in vitro research use only. The presence of a COA does not constitute an endorsement of human use. Not evaluated by the FDA.