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Immune support & longevity

FOXO4-DRI lab tests

60 certificates of analysis for FOXO4-DRI are on file, from 50 shops and 14 labs. The latest was tested on .

These are certificates shops have chosen to publish, verified for authenticity before listing. Because shops decide which COAs to make public, the set reflects the batches they published rather than every production batch — a selection bias we state openly. What shop COAs show →

Tests on file
60
all single vials
Median purity
99.69%
usual 99.00–99.88% · shop COAs
Measured vs label
106%
median · 0 under 90% · 16 over 120%
Latest test
14 labs · 50 shops
Look up your vial's lot →FOXO4-DRI prices →Get a vial tested

What FOXO4-DRI results look like

single vials only · 60 purity results · 60 measured-content results

Purity is tightly bunched: the middle 80% of results sit within 0.9 points. Measured content spreads across 35 points of the label.

HPLC purity
99.00–99.88%middle 80% of results
median 99.69%90% at 99% or higher3 under 98%
% HPLC purity
Measured content vs label
97–132%middle 80% of results
median 106%0 under 90%16 over 120%
% of the labelled amount
outside the usual rangeEndotoxin reported on 12 of 60 (20%)Confirmed on the lab's own portal: 13 (22%)Most tested size: 10 mg (57)

Latest FOXO4-DRI tests

10 most recent · all formsAll 60 ↓
Latest FOXO4-DRI lab tests
TestedShopLabPurityMeasured vs labelEndotoxinRecord
BioEdge Research LabsKovera Labs99.31%10.64 / 10 mg 106% of labelPass05122026FOX10✓
Peptide Plugsfreedomdiagnosticstesting.com99.09%11.33 / 10 mg 113% of labelPass103-08-2B✓
Modified AminosEthos Analytics99.00%10.09 / 10 mg 101% of labelPassMA-FOX-100
Oasis LabsBioviridian99.80%10.46 / 10 mg 105% of label—112455✓
Ascension PeptidesKovera Labs99.41%11.41 / 10 mg 114% of labelPass55-05260628✓
Glow AminosILS Laboratories99.86%10.63 / 10 mg 106% of label—GL-010147✓
BetterBio Synthesisfreedomdiagnosticstesting.com99.78%9.98 / 10 mg 100% of label—FOX040126
Umbrella LabsVanguard Laboratory99.09%1.89 / 2 mg 95% of label—ULP-48641
RC PeptidesJanoshik Labs99.27%9.71 / 10 mg 97% of label—010
RUO.bioVanguard Laboratory99.61%10.98 / 10 mg 110% of label—FOX002
98% or higher95–98%90–95%under 90%✓ found on the lab's own portalHover an endotoxin chip for the lab's exact wording

Results by lab

single vials · labs with the most FOXO4-DRI tests
FOXO4-DRI single-vial results by testing lab
LabTestsMedian purityMedian measured vs labelEndotoxin reportedConfirmed on lab portal
freedomdiagnosticstesting.com2099.77%105%45
Janoshik Labs1599.49%120%02
Vanguard Laboratory899.80%105%11
Bioviridian399.70%107%02
Differences reflect the vials each lab received and how it reports — this is not a ranking of labs. Every lab with a FOXO4-DRI test on file is linked under More on FOXO4-DRI.

What the FOXO4-DRI record shows

FOXO4-DRI's record holds 60 certificates from 50 shops, tested by 14 labs between September 2024 and August 2026. Reported HPLC purity ran from 95.44% to 99.95% (median 99.69%). Measured content ran from 90% to 169% of the label (median 106%). 57 of the 60 vials were labelled 10 mg. 12 certificates include an endotoxin result, and 13 were confirmed on the lab's own portal. freedomdiagnosticstesting.com ran 20 of the 60 tests.

Generated from the table below · updates with every new certificate

Every published FOXO4-DRI test

60 · newest first
60 records, most recent first.
TestedShopLabPurityMeasured vs labelEndotoxinRecord
BioEdge Research LabsKovera Labs99.31%10.64 / 10 mg 106% of labelPass05122026FOX10✓
Peptide Plugsfreedomdiagnosticstesting.com99.09%11.33 / 10 mg 113% of labelPass103-08-2B✓
Modified AminosEthos Analytics99.00%10.09 / 10 mg 101% of labelPassMA-FOX-100
Oasis LabsBioviridian99.80%10.46 / 10 mg 105% of label—112455✓
Ascension PeptidesKovera Labs99.41%11.41 / 10 mg 114% of labelPass55-05260628✓
Glow AminosILS Laboratories99.86%10.63 / 10 mg 106% of label—GL-010147✓
BetterBio Synthesisfreedomdiagnosticstesting.com99.78%9.98 / 10 mg 100% of label—FOX040126
Umbrella LabsVanguard Laboratory99.09%1.89 / 2 mg 95% of label—ULP-48641
RC PeptidesJanoshik Labs99.27%9.71 / 10 mg 97% of label—010
RUO.bioVanguard Laboratory99.61%10.98 / 10 mg 110% of label—FOX002
Disguised AlphaChromate98.58%9.97 / 10 mg 100% of label—View record →
Coffee and Peppersfreedomdiagnosticstesting.com99.51%10.21 / 10 mg 102% of labelPassCPFX426041501
Offline Peptidesfreedomdiagnosticstesting.com99.93%12.7 / 10 mg 127% of label—OP-F410-0426✓
BioLongevity LabsMDx BioAnalytical Laboratory99.76%10.19 / 10 mg 102% of labelPassView record →
Core PeptidesVanguard Laboratory99.80%10 / 10 mg 100% of label—C73588✓
Oasis LabsBioviridian99.70%10.82 / 10 mg 108% of label—262702✓
PeptidologyVanguard Laboratory99.80%9.81 / 10 mg 98% of label—1671
PeptidologyVanguard Laboratory99.80%9.81 / 10 mg 98% of label—1671
TydesJanoshik Labs99.72%19.59 / 20 mg 98% of label—FOX15021926
Real Peptidesfreedomdiagnosticstesting.com99.72%9.71 / 10 mg 97% of label—2603040154
Skye PeptidesJanoshik Labs99.78%19.5 / 15 mg 130% of label—FOX26-15-001
Pure U.S. PeptidesVanguard Laboratory99.80%12.08 / 10 mg 121% of labelPassF26C351
Amino Techfreedomdiagnosticstesting.com99.69%10.52 / 10 mg 105% of label—View record →
Grey Market Peptidefreedomdiagnosticstesting.com99.69%10.52 / 10 mg 105% of label—View record →
Soma ChemsClosedfreedomdiagnosticstesting.com99.69%10.52 / 10 mg 105% of label—Soma2602130043
Glow Aminosfreedomdiagnosticstesting.com99.89%12.41 / 10 mg 124% of labelPassGL-010029✓
Ion Peptidefreedomdiagnosticstesting.com99.94%12.19 / 10 mg 122% of label—FOX10-02022026
Atomik LabzMZ Biolabs99.67%13.62 / 10 mg 136% of label—FX0121202026
Amino ForgeJanoshik Labs99.78%11.97 / 10 mg 120% of label—CS-fo10-0122
Midshire Labs (formerly Regen Peptides)Janoshik Labs99.78%11.97 / 10 mg 120% of label—FOX10-0119
Liberty PeptidesBioviridian99.27%10.68 / 10 mg 107% of label—LPUS32254
NUPEPS Peptidesfreedomdiagnosticstesting.com99.95%12.41 / 10 mg 124% of label—FX10-HM-202512-A
Kalyx Labsfreedomdiagnosticstesting.com98.70%11.73 / 10 mg 117% of label—41010✓
Peptide Prosfreedomdiagnosticstesting.com99.88%10.84 / 10 mg 108% of label—PRV01102026
Iron Peptidesfreedomdiagnosticstesting.com99.57%9.38 / 10 mg 94% of label—View record →
Amino USABioRegen99.84%10.83 / 10 mg 108% of label—26FOX10-0002
NuScience Peptidesfreedomdiagnosticstesting.com99.76%13.4 / 10 mg 134% of label—01229
Research Peptides Europeliquilabs99.80%9.61 / 10 mg 96% of labelPassFOXO4-DRI/2025-12-03
Glacier Aminosfreedomdiagnosticstesting.com99.89%9.79 / 10 mg 98% of label—FOX10GA01
MyPurePeptideJanoshik Labs99.39%10.49 / 10 mg 105% of label—View record →
Peptirafreedomdiagnosticstesting.com99.83%9.71 / 10 mg 97% of labelPassFOX10-001
Molecular Solutions PeptidesJanoshik Labs99.10%11.28 / 10 mg 113% of label—R251104-FDR-N001✓
XL PeptidesJanoshik Labs99.15%12.02 / 10 mg 120% of label—250FOX
Elite Research USAfreedomdiagnosticstesting.com99.79%10.04 / 10 mg 100% of label—98AN1125
Kimera ChemsVanguard Laboratory99.80%16.89 / 10 mg 169% of labelCheck label—View record →
Limitless BiotechTrustPointe Analytics95.44%10 / 10 mg 100% of label—1160
Limitless BiotechJanoshik Labs95.46%10 / 10 mg 100% of label—1160
Peptide CraftersVanguard Laboratory99.48%12.24 / 10 mg 122% of label—PC-J-FOX0
Power PeptidesChromate98.96%13.19 / 10 mg 132% of labelReported290825-ML-F4I-10
UtherJanoshik Labs99.73%12.33 / 10 mg 123% of label—FOX101016✓
Kimera Chemsfreedomdiagnosticstesting.com99.50%11.61 / 10 mg 116% of label—KC-FX4-GRY1
BioLongevity LabsMDx BioAnalytical Laboratory99.80%10.13 / 10 mg 101% of label—View record →
24Peptidesliquilabs99.80%10.57 / 10 mg 106% of labelPassGF082025009
Atomik LabzJanoshik Labs99.62%13.96 / 10 mg 140% of label—0910
TydesJanoshik Labs99.23%14.68 / 10 mg 147% of label—FOX10090225
HkRoidsfreedomdiagnosticstesting.com99.95%9.03 / 10 mg 90% of label—0367
RUO.bioJanoshik Labs99.23%10.56 / 10 mg 106% of label—2025
Verified PeptidesJanoshik Labs99.49%11 / 10 mg 110% of label—03-25-0110A
Atomik LabzJanoshik Labs99.61%14.02 / 10 mg 140% of label—0114MM
BiolabshopAnaliza Białek97.00%10.23 / 10 mg 102% of label—100005808

Measured amount in amber when it is under 90% or over 130% of the label; Check label when it is under 80% or over 150%. Records without a lot number link as View →.

Seven checks for any FOXO4-DRI certificate

  1. Batch-matched and independent. The certificate names the lot in your hands and comes from a lab the vendor neither owns nor pays.
  2. Purity against the range. Read the figure against what other certificates for this compound report. How to read HPLC and mass-spec results
  3. Mass-spec identity. Only mass spectrometry shows which molecule is in the vial.
  4. Net content, measured. Purity and quantity are separate questions. Why 10 mg isn't 10 mg
  5. Endotoxin on the batch. A missing line means not tested, not passed. Endotoxin testing and LAL interpretation
  6. A lab you can check. Named on the certificate, with a way to verify it. Testing labs we track · Red flags in a certificate of analysis
  7. What no test shows. A clean certificate says nothing about efficacy, dosing or long-term safety.
Want a vial tested yourself? How to send a peptide for independent HPLC testing →

Related lab tests

More on FOXO4-DRI

FOXO4-DRI — compound profilewhat it is, shops, purityFOXO4-DRI prices$/mg across lab-tested shopsCOA benchmarkswhat shop COAs show and leave outGet a peptide testedlabs, prices, what to orderCheck your viallook up a lot number

Labs with FOXO4-DRI tests on file (14): Kovera Labs, freedomdiagnosticstesting.com, Ethos Analytics, Bioviridian, ILS Laboratories, Vanguard Laboratory, Janoshik Labs, Chromate, MDx BioAnalytical Laboratory, MZ Biolabs, BioRegen, liquilabs, TrustPointe Analytics, Analiza Białek