KLOW lab tests
108 certificates of analysis for KLOW are on file, from 72 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 →
What KLOW results look like
Purity is tightly bunched: the middle 80% of results sit within 0.5 points. Measured content spreads across 103 points of the label.
Latest KLOW tests
| Tested | Shop | Lab | Purity | Measured vs label | Endotoxin | Record |
|---|---|---|---|---|---|---|
| Saltydog Research | — | — | not reported | — | SD-KLOW-80-02 | |
| Veratis Bio Peptides | freedomdiagnosticstesting.com | 99.68% | not reported | Pass | KLOW0001✓ | |
| Vistara Labs | SideChain Analytics | 99.54% | not reported | — | View record → | |
| Backroad Aminos | freedomdiagnosticstesting.com | 99.85% | not reported | Pass | 0926KLO80✓ | |
| Purely Peptides | Bioviridian | 99.75% | not reported | — | KLW-20260828-01✓ | |
| 10 Bottle Value | Krause Analytical | 99.60% | not reported | — | s5abbsf | |
| ANKR Lab | freedomdiagnosticstesting.com | 99.68% | not reported | — | 9001✓ | |
| NovaForge Labs | freedomdiagnosticstesting.com | 99.69% | not reported | — | NFL-0002✓ | |
| Humatide Peptides | ILS Laboratories | 99.90% | not reported | — | H80KLOW073126-2 | |
| NorthStar Compounds | Kovera Labs | 99.14% | not reported | — | K802602✓ |
Results by lab
| Lab | Tests | Median purity | Median measured vs label | Endotoxin reported | Confirmed on lab portal |
|---|---|---|---|---|---|
| freedomdiagnosticstesting.com | 50 | 99.71% | 220% | 14 | 44 |
| Kovera Labs | 17 | 99.52% | — | 15 | 16 |
| ILS Laboratories | 14 | 99.75% | — | 2 | 13 |
| Vanguard Laboratory | 5 | 99.50% | — | 0 | 0 |
| Bioviridian | 4 | 99.85% | — | 2 | 2 |
| MDx BioAnalytical Laboratory | 4 | 99.75% | — | 3 | 4 |
| Chromate | 3 | 99.72% | — | 3 | 3 |
| Janoshik Labs | 3 | 99.93% | — | 1 | 3 |
What the KLOW record shows
KLOW's record holds 108 certificates from 72 shops, tested by 14 labs between August 2025 and October 2026. Reported HPLC purity ran from 98.75% to 99.95% (median 99.70%). Measured content ran from 100% to 250% of the label (median 220%). 41 certificates include an endotoxin result, and 86 were confirmed on the lab's own portal. freedomdiagnosticstesting.com ran 50 of the 108 tests.
Generated from the table below · updates with every new certificate
Every published KLOW test
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 KLOW certificate
- Batch-matched and independent. The certificate names the lot in your hands and comes from a lab the vendor neither owns nor pays.
- Purity against the range. Read the figure against what other certificates for this compound report. How to read HPLC and mass-spec results
- Mass-spec identity. Only mass spectrometry shows which molecule is in the vial.
- Net content, measured. Purity and quantity are separate questions. Why 10 mg isn't 10 mg
- Endotoxin on the batch. A missing line means not tested, not passed. Endotoxin testing and LAL interpretation
- 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
- What no test shows. A clean certificate says nothing about efficacy, dosing or long-term safety.
Related lab tests
More on KLOW
Labs with KLOW tests on file (14): freedomdiagnosticstesting.com, SideChain Analytics, Bioviridian, Krause Analytical, ILS Laboratories, Kovera Labs, Janoshik Labs, Testides, MZ Biolabs, Ethos Analytics, MDx BioAnalytical Laboratory, Vanguard Laboratory, Chromate, BTLabs