COA results by compound

PT-141 COA — Verified Certificate of Analysis Results

625 independent third-party certificates of analysis for PT-141, from 8 labs across 380 vendors (2022-11-13 to 2026-07-03).

Every PT-141 certificate of analysis below is from an independent third-party lab, ingested and verified by TitrateLab. The figures here are computed live from the 625 published PT-141 certs in our corpus.

Assay metrics

PT-141 lab-testing metrics

99.9%
Median tested purity
1
Zero-purity certs
Mean purity99.5% Mean dose vs label+8.0% Endotoxin pass100% Within 10% of label dose53% Overdosed ≥ +7%47% Underdosed ≤ −7%14%

COAs per testing lab

Every lab testing PT-141 in the corpus.

Freedom Diagnostics 429 99.9% med
Janoshik 84 99.9% med
Finnrick (Lab E) 51 99.9% med
Finnrick (Lab A) 31 99.4% med
Finnrick (Lab G) 12 99.8% med
Finnrick (Lab D) 7 99.6% med
Finnrick (Lab F) 7 99.7% med
Chromate 1 99.8% med
Finnrick 1 96.5% med
SR BIO LABS 1 99.1% med
Unattributed / lab unknown 1 99.8% med

Tested-purity distribution

Bins below 90% tested purity.

PT-141 tested-purity distribution
Purity rangeCertificates
0–50%1
50–70%0
70–80%0
80–85%0
85–90%1
90–91%1
91–92%0
92–93%1
93–94%0
94–95%1
95–96%1
96–97%5
97–98%5
98–99%7
99–100%601

COAs over time

PT-141 certificates published per month.

PT-141 certificates per month
MonthCertificates
2022-111
2023-111
2024-011
2024-052
2024-065
2024-074
2024-081
2024-093
2024-112
2025-016
2025-022
2025-0314
2025-046
2025-0529
2025-0612
2025-0715
2025-0830
2025-0915
2025-1041
2025-1146
2025-1242
2026-0145
2026-0255
2026-0325
2026-0457
2026-0566
2026-0688
2026-0711

Most-tested vendors

Top 10 of 15 vendors by PT-141 certificate count.

See who tests most — unlock the vendor names with Pro.

Verified Vendor A 🔒 14
Verified Vendor B 🔒 10
Verified Vendor C 🔒 10
Verified Vendor D 🔒 9
Verified Vendor E 🔒 8
Verified Vendor F 🔒 8
Verified Vendor G 🔒 8
Verified Vendor H 🔒 8
Verified Vendor I 🔒 8
Verified Vendor J 🔒 7

+ 5 more vendors with fewer certificates.

Verified PT-141 certificates of analysis

VendorPurityDose vs labelLabTested
ITide Labs 99.82% -1.4% Freedom Diagnostics 2026-07-03 View COA →
Project Amino 99.96% -7.3% Freedom Diagnostics 2026-07-03 View COA →
Bio Point Peptides 99.92% +3.6% Freedom Diagnostics 2026-07-03 View COA →
Bee Sweet 99.94% -1.4% Freedom Diagnostics 2026-07-03 View COA →
ResearchPeps 99.11% -8.1% Freedom Diagnostics 2026-07-02 View COA →
National Science Labs, LLC 99.64% -19.2% Freedom Diagnostics 2026-07-02 View COA →
RIVN Peptides 99.87% -2.0% Freedom Diagnostics 2026-07-01 View COA →
Purity Analytics 99.86% -6.5% Freedom Diagnostics 2026-07-01 View COA →
Northstar Peptides 99.96% +14.8% Freedom Diagnostics 2026-07-01 View COA →
Guangzhou Aoyu Trading Firm 99.93% +24.2% Freedom Diagnostics 2026-07-01 View COA →
Elevar 99.96% +2.5% Freedom Diagnostics 2026-07-01 View COA →
NODEX Corp 99.85% -1.3% Freedom Diagnostics 2026-06-30 View COA →
Centennial Peptides 99.95% +25.9% Freedom Diagnostics 2026-06-30 View COA →
Tegridy Research 99.97% -12.2% Freedom Diagnostics 2026-06-29 View COA →
Protide Health 99.86% +34.6% Freedom Diagnostics 2026-06-29 View COA →
Peter Piper's Peppers 99.9% -3.8% Freedom Diagnostics 2026-06-29 View COA →
FirstForm Peptides 99.91% -1.1% Freedom Diagnostics 2026-06-29 View COA →
Amino Annex 99.59% +34.4% Freedom Diagnostics 2026-06-29 View COA →
Hexis Research 99.97% +25.5% Freedom Diagnostics 2026-06-28 View COA →
Short Chain Aminos 99.94% +7.6% Freedom Diagnostics 2026-06-27 View COA →
Kraken Research Labs, LLC 99.88% +3.7% Freedom Diagnostics 2026-06-27 View COA →
Bionic Longevity LLC 99.91% +14.7% Freedom Diagnostics 2026-06-27 View COA →
Midwest Peptide 99.94% +0.4% Freedom Diagnostics 2026-06-25 View COA →
Light mtg 99.87% +1.1% Freedom Diagnostics 2026-06-25 View COA →
Halo Peptides 99.88% -11.7% Freedom Diagnostics 2026-06-25 View COA →
Amino Lair 99.94% — Freedom Diagnostics 2026-06-25 View COA →
Umbrella 99.85% +10.8% Freedom Diagnostics 2026-06-24 View COA →
Redacted Research LLC 99.94% +25.6% Freedom Diagnostics 2026-06-24 View COA →
Max Ventures LTD (PEP LAUNCHPAD) 99.57% — Freedom Diagnostics 2026-06-24 View COA →
Peptide Restore 99.7% +20.5% Freedom Diagnostics 2026-06-23 View COA →
Kim Perez 99.9% +16.8% Freedom Diagnostics 2026-06-23 View COA →
Satas Inc. / be.satas 99.89% +30.8% Freedom Diagnostics 2026-06-22 View COA →
Jade Nexus 99.88% +6.6% Freedom Diagnostics 2026-06-22 View COA →
EternaWell Peptides 99.92% -6.3% Freedom Diagnostics 2026-06-22 View COA →
DKS Labs 99.89% +30.8% Freedom Diagnostics 2026-06-22 View COA →
Bionetik Labs 99.83% +4.1% Freedom Diagnostics 2026-06-22 View COA →
BBA 99.89% +30.8% Freedom Diagnostics 2026-06-22 View COA →
LMG Bio Lifesciences 99.98% +5.3% Freedom Diagnostics 2026-06-21 View COA →
Protech Peptides 99.92% +8.8% Freedom Diagnostics 2026-06-20 View COA →
Modern Aminos 99.93% +21.7% Freedom Diagnostics 2026-06-20 View COA →
Go Alpha Labs 99.86% -9.4% Freedom Diagnostics 2026-06-19 View COA →
Taurus Peptides,LLC 99.97% +20.7% Freedom Diagnostics 2026-06-18 View COA →
Peptaris 99.77% — Freedom Diagnostics 2026-06-18 View COA →
Nova Life Peptides 99.82% +1.9% Freedom Diagnostics 2026-06-18 View COA →
Unknown vendor (review) 99.96% -0.7% Freedom Diagnostics 2026-06-18 View COA →
US Precision Health 99.8% +31.5% Freedom Diagnostics 2026-06-17 View COA →
NexGen Peptides 99.85% +26.4% Freedom Diagnostics 2026-06-17 View COA →
Superhuman Peptides 99.63% -2.9% Freedom Diagnostics 2026-06-15 View COA →
Rejuvenate Peptides 99.98% +13.5% Freedom Diagnostics 2026-06-15 View COA →
Pacific Edge Labs 99.75% +6.9% Freedom Diagnostics 2026-06-15 View COA →
JAG Biolabs 99.94% +18.1% Freedom Diagnostics 2026-06-15 View COA →
High Tide Sciences — +25.4% Freedom Diagnostics 2026-06-15 View COA →
Centre Research 99.82% -12.5% Freedom Diagnostics 2026-06-15 View COA →
NuraPeptide 99.81% -0.4% Freedom Diagnostics 2026-06-14 View COA →
Northwest Peptides 99.93% +2.1% Freedom Diagnostics 2026-06-14 View COA →
Lonestar Peptides + Research 99.98% +38.4% Freedom Diagnostics 2026-06-14 View COA →
Nexgen Pharmaceuticals 99.95% -16.0% Freedom Diagnostics 2026-06-13 View COA →
LEARSI 99.96% +14.9% Freedom Diagnostics 2026-06-12 View COA →
Unknown vendor (review) 99.91% +24.1% Freedom Diagnostics 2026-06-11 View COA →
Simple Peptide 99.91% +24.1% Freedom Diagnostics 2026-06-11 View COA →

Showing the 60 most recent of 625 PT-141 certificates.

PT-141 research & evidence → Verify a PT-141 COA → Browse vendors →

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