N-Acetyl Semax Amidate has 36 independent tests on file from 10 laboratories across 16 vendors; the recency-weighted purity index is 99.66. The most recent test was submitted on 2026-07-03.
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. How the index is calculated →
| Vendor | Testing lab | Date | HPLC purity | Identity (sample) | Net content | Endotoxin |
|---|---|---|---|---|---|---|
| bioedgeresearchlabs.com | Kovera Labs | 2026-07-03 | 99.73% | NA Semax Amidate062026SEM10✓ Lab-verified | 10.21 / 10 mg (102%) | Pass (≤0.5 EU/mL) |
| bioedgeresearchlabs.com | Kovera Labs | 2026-07-03 | 99.46% | NA Semax Amidate062026SEM30✓ Lab-verified | 29.76 / 30 mg (99%) | Pass (≤0.5 EU/mL) |
| protidehealth.com | freedomdiagnosticstesting.com | 2026-06-12 | 99.94% | N Acetyl Selank/N Acetyl SemaxPH-stsx20-0626 | 23.53 / 20 mg (118%) | Pass |
| genpeptide.com | Chromate | 2026-05-30 | 99.73% | N-Acetyl Semax AmidateGPSMX10052526✓ Lab-verified | 12.02 / 10 mg (120%) | — |
| ezpeptides.com | Janoshik Labs | 2026-05-29 | 99.33% | N-Acetyl Semax AmidateEZP-SEMX1005182026-10✓ Lab-verified | 11.59 / 10 mg (116%) | — |
| ameano peptides | Janoshik Labs | 2026-05-29 | 99.14% | N-Acetyl SemaxAMP-SEMX1005182026-10✓ Lab-verified | 11.71 / 10 mg (117%) | — |
| ameano peptides | Janoshik Labs | 2026-05-29 | 99.62% | N-Acetyl SemaxAMP-SEL1005192026-08✓ Lab-verified | 11.36 / 10 mg (114%) | — |
| protidehealth.com | freedomdiagnosticstesting.com | 2026-05-18 | 99.82% | N-Acetyl SemaxPH-nasa10928 | 11.93 / 10 mg (119%) | Pass |
| bioedgeresearchlabs.com | Kovera Labs | 2026-05-04 | 99.83% | NA Semax Amidate03312026SEM30✓ Lab-verified | 34.68 / 30 mg (116%) | PASS (≤0.5 EU/mL) |
| BioLongevity Labs | MDx BioAnalytical Laboratory | 2026-05-01 | 99.75% | N-Acetyl Semax Amidaate20-3-46136 | 20.64 / 20 mg (103%) | ≤0.05 EU/mL (PASS) |
| genpeptide.com | Chromate | 2026-04-29 | 99.74% | N-Acetyl Semax AmidateGPSMX10042226✓ Lab-verified | 11.39 / 10 mg (114%) | — |
| polarispeptides.com | Janoshik Labs | 2026-04-28 | 99.47% | N-Acetyl Semax AmidatePOL-NSMA10-2✓ Lab-verified | 11.77 / 10 mg (118%) | — |
| corepeptides.com | Vanguard Laboratory | 2026-04-28 | 99.80% | N-Acetyl SemaxC74589✓ Lab-verified | 25 / 25 mg (100%) | — |
| bioedgeresearchlabs.com | Kovera Labs | 2026-04-22 | 99.89% | NA Semax Amidate03312026SEM10✓ Lab-verified | 11.67 / 10 mg (117%) | PASS (≤0.5 EU/mL) |
| evolvebiopep.com | Ethos Analytics | 2026-04-12 | 98.00% | N-Acetyl Semax AmidateESX-260404-B10Lab has no portal | 10.09 / 10 mg (101%) | <1.25 EU/ml |
| 24peptides.com | liquilabs | 2026-04-10 | 99.80% | N-Acetyl SemaxGF-NSEM10-B241Lab has no portal | 10.76 / 10 mg (108%) | < 0.001 |
| 24peptides.com | liquilabs | 2026-04-03 | 99.80% | N-Acetyl SemaxGF-NEPI20-B241Lab has no portal | 22.6 / 20 mg (113%) | < 0.001 |
| s1research.net | freedomdiagnosticstesting.com | 2026-04-01 | 99.84% | N-Acetyl Semax Amidate26031803✓ Lab-verified | 13.68 / 10 mg (137%) | Pass |
| Instant Peptides | Kovera Labs | 2026-03-29 | 99.90% | N-Acetyl Semax Amidato2026-0288-B | 11.83 / 10 mg (118%) | — |
| Instant Peptides | Kovera Labs | 2026-03-29 | 99.96% | N-Acetyl Semax Amidato2026-0268-B | 11.92 / 10 mg (119%) | — |
| bioedgeresearchlabs.com | MDx BioAnalytical Laboratory | 2026-03-22 | 99.76% | NA Semax Amidate20260311SEM10✓ Lab-verified | 10.09 / 10 mg (101%) | PASS (≤0.05 EU/mL) |
| genpeptide.com | freedomdiagnosticstesting.com | 2026-03-06 | 99.70% | N-Acetyl Semax AmidateGPSMX10030526✓ Lab-verified | 11.49 / 10 mg (115%) | — |
| protidehealth.com | freedomdiagnosticstesting.com | 2026-03-02 | 99.62% | N-Acetyl SemaxPH-NASL1009 | 11.39 / 10 mg (114%) | — |
| simonsrx.com | Bioviridian | 2026-02-26 | 99.80% | N-Acetyl Semax | 15.48 / 15 mg (103%) | — |
| BioLongevity Labs | MDx BioAnalytical Laboratory | 2026-02-23 | 99.77% | N-Acetyl Semax Amidaate20-3-46071 | 20.41 / 20 mg (102%) | ≤0.05 EU/mL (PASS) |
| bioedgeresearchlabs.com | MDx BioAnalytical Laboratory | 2026-01-28 | 99.79% | NA Semax Amidate01192026SEM30✓ Lab-verified | 30.99 / 30 mg (103%) | PASS (≤0.05 EU/mL) |
| 24peptides.com | liquilabs | 2026-01-27 | 99.80% | N-Acetyl SemaxGF112025087Lab has no portal | 13.6 / 10 mg (136%) | < 0.001 |
| synthesis peptides | freedomdiagnosticstesting.com | 2026-01-09 | 99.53% | N-Acetyl Semax Amidiate | 33.99 / 30 mg (113%) | — |
| mspeptides.com | freedomdiagnosticstesting.com | 2025-12-17 | 99.27% | N-Acetyl Semax AmidateR250815-SMA30-M001✓ Lab-verified | 30.75 / 30 mg (102%) | — |
| mspeptides.com | freedomdiagnosticstesting.com | 2025-12-17 | 99.81% | N-Acetyl Selank AmidateR251011-SLA30-M001✓ Lab-verified | 31.77 / 30 mg (106%) | — |
| BioLongevity Labs | BioRegen | 2025-10-29 | 99.89% | N-Acetyl-Semax Amidaate20-3-45925 | 21.42 / 20 mg (107%) | — |
| BioLongevity Labs | BioRegen | 2025-10-29 | 99.70% | N-Acetyl-Selank Amidaate19-3-45937 | 21.8 / 20 mg (109%) | — |
| BioLongevity Labs | MDx BioAnalytical Laboratory | 2025-10-20 | 99.80% | N-Acetyl Semax Amidaate | 20.21 / 20 mg (101%) | — |
| BioLongevity Labs | MDx BioAnalytical Laboratory | 2025-10-20 | 99.80% | N-Acetyl-Selank Amidaate | 20.71 / 20 mg (104%) | — |
| BioLongevity Labs | BioRegen | 2025-09-09 | 99.89% | N-Acetyl-Semax Amidaate20-2-45785 | 21.87 / 20 mg (109%) | — |
| researchreadypeptides.com | Vanguard Laboratory | 2024-09-23 | 99.99% | N-Acetyl SemaxBEJTST-XA-1 | 30.06 / 30 mg (100%) | — |
The same seven questions decide whether a certificate of analysis means anything, whichever compound it describes. Six are about the document; the seventh is about what no document can tell you.
Want a vial tested yourself? How to send a peptide for independent HPLC testing.