COA results by compound

SS-31 COA — Verified Certificate of Analysis Results

789 independent third-party certificates of analysis for SS-31, from 10 labs across 494 vendors (2023-11-03 to 2026-07-02).

Every SS-31 certificate of analysis below is from an independent third-party lab, ingested and verified by TitrateLab. The figures here are computed live from the 789 published SS-31 certs in our corpus.

Assay metrics

SS-31 lab-testing metrics

99.8%
Median tested purity
1
Zero-purity certs
Mean purity99.7% Mean dose vs label+8.6% Within 10% of label dose53% Overdosed ≥ +7%48% Underdosed ≤ −7%12%

COAs per testing lab

Every lab testing SS-31 in the corpus.

Freedom Diagnostics 666 99.8% med
Janoshik 103 99.8% med
Chromate 3 99.9% med
Finnrick (Lab E) 3 99.5% med
Unattributed / lab unknown 3 99.8% med
Finnrick (Lab G) 1 99.9% med
Peptide Test 1 95.3% med
Uzorak 1 99.5% med

Tested-purity distribution

Bins below 90% tested purity.

SS-31 tested-purity distribution
Purity rangeCertificates
0–50%1
50–70%0
70–80%0
80–85%0
85–90%0
90–91%0
91–92%0
92–93%0
93–94%0
94–95%0
95–96%1
96–97%0
97–98%1
98–99%6
99–100%780

COAs over time

SS-31 certificates published per month.

SS-31 certificates per month
MonthCertificates
2023-112
2024-011
2024-021
2024-051
2024-062
2024-081
2024-091
2024-101
2024-111
2024-122
2025-014
2025-023
2025-035
2025-045
2025-059
2025-0612
2025-0719
2025-0815
2025-0920
2025-1034
2025-1162
2025-1251
2026-0180
2026-0294
2026-0325
2026-0477
2026-0581
2026-06163
2026-0717

Most-tested vendors

Top 10 of 15 vendors by SS-31 certificate count.

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

Verified Vendor A 🔒 20
Verified Vendor B 🔒 13
Verified Vendor C 🔒 9
Verified Vendor D 🔒 8
Verified Vendor E 🔒 7
Verified Vendor F 🔒 7
Verified Vendor G 🔒 7
Verified Vendor H 🔒 6
Verified Vendor I 🔒 6
Verified Vendor J 🔒 6

+ 5 more vendors with fewer certificates.

Verified SS-31 certificates of analysis

VendorPurityDose vs labelLabTested
Red Dirt Research 99.85% +9.7% Freedom Diagnostics 2026-07-02 View COA →
R3VIVE Labs 99.92% -6.1% Freedom Diagnostics 2026-07-02 View COA →
National Science Labs, LLC 99.73% -7.8% Freedom Diagnostics 2026-07-02 View COA →
Lioness Labs 99.83% +3.8% Freedom Diagnostics 2026-07-02 View COA →
Expert Peptides USA 99.89% +0.9% Freedom Diagnostics 2026-07-02 View COA →
Evergreen Peptides LLC 99.73% +10.2% Freedom Diagnostics 2026-07-02 View COA →
Bee Sweet 99.88% +18.3% Freedom Diagnostics 2026-07-02 View COA →
TC Supply 99.87% +10.2% Freedom Diagnostics 2026-07-01 View COA →
Shengtai 99.92% +12.3% Freedom Diagnostics 2026-07-01 View COA →
Shark-Line Peptide Company 99.88% +35.7% Freedom Diagnostics 2026-07-01 View COA →
RIVN Peptides 99.94% +7.6% Freedom Diagnostics 2026-07-01 View COA →
Papi Peps 99.92% +7.4% Freedom Diagnostics 2026-07-01 View COA →
Pantheon 99.83% -0.3% Freedom Diagnostics 2026-07-01 View COA →
Pantheon 99.83% +3.2% Freedom Diagnostics 2026-07-01 View COA →
Miami BioTides 99.74% +8.8% Freedom Diagnostics 2026-07-01 View COA →
G Tech 99.78% -1.7% Freedom Diagnostics 2026-07-01 View COA →
Formal Peptides 99.84% +7.8% Freedom Diagnostics 2026-07-01 View COA →
True North 99.93% +8.6% Freedom Diagnostics 2026-06-30 View COA →
Purity Tides 99.81% — Freedom Diagnostics 2026-06-30 View COA →
Jessica 99.94% — Freedom Diagnostics 2026-06-30 View COA →
Kara 99.848% — Janoshik 2026-06-30 View COA →
NOVUS 99.89% -5.5% Freedom Diagnostics 2026-06-29 View COA →
NG Syndicate 99.81% +13.1% Freedom Diagnostics 2026-06-29 View COA →
NG Syndicate 99.88% +36.3% Freedom Diagnostics 2026-06-29 View COA →
Iron Within Research 99.81% +9.7% Freedom Diagnostics 2026-06-29 View COA →
Ion Peptide 99.91% +434.2% Freedom Diagnostics 2026-06-29 View COA →
FirstForm Peptides 99.91% +27.7% Freedom Diagnostics 2026-06-29 View COA →
Coffee & Peppers 99.88% +20.2% Freedom Diagnostics 2026-06-29 View COA →
CertiPure/USPw 99.9% -3.3% Freedom Diagnostics 2026-06-29 View COA →
Aligned Aminos 99.88% +24.0% Freedom Diagnostics 2026-06-29 View COA →
Star Nutrasciences Inc. 99.81% -3.9% Freedom Diagnostics 2026-06-28 View COA →
MRP 99.89% +22.3% Freedom Diagnostics 2026-06-28 View COA →
Hexis Research 99.85% +2.4% Freedom Diagnostics 2026-06-28 View COA →
White Market Peptides 99.86% +14.0% Freedom Diagnostics 2026-06-27 View COA →
R Williams 99.77% +4.8% Freedom Diagnostics 2026-06-27 View COA →
R Williams 99.9% +16.2% Freedom Diagnostics 2026-06-27 View COA →
NextSelf 99.89% +24.4% Freedom Diagnostics 2026-06-27 View COA →
Kupri Labs 99.9% -1.3% Freedom Diagnostics 2026-06-27 View COA →
Peptidologix 99.83% +15.9% Freedom Diagnostics 2026-06-26 View COA →
LNP 99.75% +7.9% Freedom Diagnostics 2026-06-26 View COA →
The Gray Area 99.66% +13.4% Freedom Diagnostics 2026-06-25 View COA →
Halo Peptides 99.94% +0.5% Freedom Diagnostics 2026-06-25 View COA →
Bio Health Peptides Proteins 99.75% +9.3% Freedom Diagnostics 2026-06-25 View COA →
BioHax Labz 99.94% +3.9% Freedom Diagnostics 2026-06-25 View COA →
Wicked Bio Peptides 99.79% +14.4% Freedom Diagnostics 2026-06-24 View COA →
Retatrutidelog.com 99.73% — Freedom Diagnostics 2026-06-24 View COA →
Profound Aminos 99.92% +16.2% Freedom Diagnostics 2026-06-24 View COA →
Parasyn Labs 99.74% +13.9% Freedom Diagnostics 2026-06-24 View COA →
ChoicePeps 99.93% +23.4% Freedom Diagnostics 2026-06-24 View COA →
Peptide Restore 99.84% +24.1% Freedom Diagnostics 2026-06-23 View COA →
Bio Jacked Supplements 99.85% -2.9% Freedom Diagnostics 2026-06-23 View COA →
Beauty Biogenics LLC 99.74% -4.2% Freedom Diagnostics 2026-06-23 View COA →
Beauty Biogenics LLC 99.86% +16.8% Freedom Diagnostics 2026-06-23 View COA →
AxonChems LLC 99.95% +2.4% Freedom Diagnostics 2026-06-23 View COA →
Rejuvenate Peptides 99.93% +5.0% Freedom Diagnostics 2026-06-22 View COA →
QBT 99.82% — Freedom Diagnostics 2026-06-22 View COA →
PeptidePlugs.com 99.95% +7.4% Freedom Diagnostics 2026-06-22 View COA →
PrimeBio 99.83% +8.8% Freedom Diagnostics 2026-06-22 View COA →
G2 Custom c 99.86% — Freedom Diagnostics 2026-06-22 View COA →
Cryocore Performance 99.95% -3.9% Freedom Diagnostics 2026-06-22 View COA →

Showing the 60 most recent of 789 SS-31 certificates.

SS-31 research & evidence → Verify a SS-31 COA → Browse vendors →

More COA results by compound

Retatrutide COA (9803) Tirzepatide COA (7362) GHK-Cu COA (2458) BPC-157 COA (2397) Tesamorelin COA (2238) MOTS-c COA (1982) NAD+ COA (1477) TB-500 COA (1253) BPC-157 + TB-500 COA (1141) Ipamorelin COA (1132) BPC-157 + Ghk-cu + Kpv + TB-500 COA (947) CJC-1295 + Ipamorelin COA (898)