Merit

For research use only. Not for human consumption. Not medical advice — consult a licensed clinician.

Testing lab

MZ Biolabs

Tucson AZ. No ISO 17025. Purity only — no sterility/metals standard.

Vendors covered
4
Peptides tested
10
Latest report
Jun 2026
Who they test for

Top vendors served

What they test

Top peptides tested

Recent analyses

Latest COAs from MZ Biolabs

Most recent test reports on file.

✓ Vendor-published
99.43 %
Jun 2026
MZ Biolabs Moderate

For

BPC-157 (Bepecin) Arginine Salt

by Sports Technology Labs· batch 2026-05-30

COA on file
Aggregated · 3rd-party listing
98.90 %
May 2026
MZ Biolabs Moderate

For

KPV

by Kimera Chems· batch KC-KPV-03

✓ Vendor-published
99.02 %
May 2026
MZ Biolabs Moderate

For

AOD-9604

by Sports Technology Labs· batch 2026-05-04

COA on file
✓ Vendor-published
99.97 %
Apr 2026
MZ Biolabs Moderate

For

GHK Copper

by Sports Technology Labs· batch 2026-04-13

COA on file
Aggregated · 3rd-party listing
99.86 %
Feb 2026
MZ Biolabs Moderate · HPLC

For

Ipamorelin

by Ascension Peptides· batch 06-01260229

Aggregated · 3rd-party listing
99.79 %
Feb 2026
MZ Biolabs Moderate · HPLC

For

BPC-157

by Ascension Peptides· batch 11-01260229

Aggregated · 3rd-party listing
99.79 %
Feb 2026
MZ Biolabs Moderate · HPLC

For

BPC-157

by Ascension Peptides· batch 11-01260229

Aggregated · 3rd-party listing
99.47 %
Feb 2026
MZ Biolabs Moderate · HPLC

For

PT-141

by Ascension Peptides· batch 28-01260229

Aggregated · 3rd-party listing
99.47 %
Feb 2026
MZ Biolabs Moderate · HPLC

For

Bremelanotide

by Ascension Peptides· batch 28-01260229

Aggregated · 3rd-party listing
99.75 %
Feb 2026
MZ Biolabs Moderate · HPLC

For

Semax

by Ascension Peptides· batch 30-01260229

Aggregated · 3rd-party listing
99.94 %
Jan 2026
MZ Biolabs Moderate · HPLC

For

Retatrutide

by Ascension Peptides· batch 03-01260229

Aggregated · 3rd-party listing
99.94 %
Jan 2026
MZ Biolabs Moderate · HPLC

For

Retatrutide

by Ascension Peptides· batch 03-01260229

Aggregated · 3rd-party listing
99.97 %
Jan 2026
MZ Biolabs Moderate · HPLC

For

FOXO4-DRI

by Ascension Peptides· batch 55-01260229

Aggregated · 3rd-party listing
99.97 %
Jan 2026
MZ Biolabs Moderate · HPLC

For

FOXO4-DRI

by Ascension Peptides· batch 55-01260229

✓ Vendor-published
99.45 %
Oct 2025
MZ Biolabs Moderate

For

PEG-MGF

by Sports Technology Labs· batch 2025-10-06

COA on file
Aggregated · 3rd-party listing
99.48 %
Oct 2025
MZ Biolabs Moderate · HPLC

For

PE-22-28

by Ascension Peptides· batch 41-06250728

Aggregated · 3rd-party listing
99.48 %
Oct 2025
MZ Biolabs Moderate · HPLC

For

PE-22-28

by Ascension Peptides· batch 41-06250728

Aggregated · 3rd-party listing
99.27 %
Oct 2025
MZ Biolabs Moderate · HPLC

For

Sermorelin

by Ascension Peptides· batch 38-07250828

Aggregated · 3rd-party listing
99.93 %
Aug 2025
MZ Biolabs Moderate · HPLC

For

Retatrutide

by Profound Aminos· batch 2025-08-19

✓ Vendor-published
98.36 %
Jul 2025
MZ Biolabs Moderate

For

CJC-1295 with DAC

by Sports Technology Labs· batch 2025-06-16

COA on file
Aggregated · 3rd-party listing
99.82 %
Jun 2025
MZ Biolabs Moderate · HPLC

For

Retatrutide

by Profound Aminos· batch 2025-06-06

Aggregated · 3rd-party listing
99.13 %
Jun 2025
MZ Biolabs Moderate · HPLC

For

Vasoactive Intestinal Peptide (VIP)

by Profound Aminos· batch 2025-05-19

Aggregated · 3rd-party listing
99.27 %
May 2025
MZ Biolabs Moderate

For

KPV

by Kimera Chems· batch KC-KPV-01

Aggregated · 3rd-party listing
99.75 %
May 2025
MZ Biolabs Moderate · HPLC

For

CagriSema

by Profound Aminos· batch 2025-04-31

Aggregated · 3rd-party listing
98.14 %
May 2025
MZ Biolabs Moderate

For

Oxytocin

by Profound Aminos· batch 2025-04-31 blue cap

Aggregated · 3rd-party listing
99.97 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

BPC-157

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
99.97 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

Semax

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
99.95 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

BPC-157

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
99.91 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

GHK-Cu

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
99.85 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

SS-31 (Elamipretide)

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
99.81 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

Melanotan I

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
99.69 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

SNAP-8

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
99.68 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

Melanotan II

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
99.66 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

TB-500

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
99.59 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

Selank

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
99.53 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

Ipamorelin

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
99.51 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

GHK-Cu

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
99.37 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

Kisspeptin-10

by Profound Aminos· batch 2025-04-02

Aggregated · 3rd-party listing
99.30 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

Thymosin beta4

by Profound Aminos· batch 2025-04-03

Aggregated · 3rd-party listing
98.44 %
Apr 2025
MZ Biolabs Moderate · HPLC

For

ARA-290

by Profound Aminos· batch 2025-04-03