Vendor rankings
20 vendors scored on 158 independent lab results. Switch to a product to see who leads that compound specifically, since the overall rank and the product rank often disagree.
showing 20 of 20 vendors. Updated Oct 27, 2026.
| # | Vendor | Purity | Trust | Delivery | Value | Overall |
|---|---|---|---|---|---|---|
| 1 | Atomik Labz 24 tests, 24 passed, latest Oct 24, 2026 | 98.4 | 100 | 1001d median | 86 | 97.3 |
| 2 | Solution Peptides 20 tests, 20 passed, latest Sep 9, 2026 | 97.8 | 98 | 912d median | 86 | 94.7 |
| 3 | ezPeps 5 tests, 5 passed, latest Oct 2, 2026 | 93.9 | 94 | 823d median | 78 | 89.2 |
| 4 | Ion Peptides 8 tests, 7 passed, latest Oct 12, 2026 | 88.9 | 96 | 912d median | 74 | 88.9 |
| 5 | Skye Peptides 7 tests, 6 passed, latest Oct 6, 2026 | 87.5 | 96 | 823d median | 70 | 85.9 |
| 6 | Peptide Partners 8 tests, 7 passed, latest Oct 20, 2026 | 85.3 | 96 | 823d median | 76 | 85.9 |
| 7 | Simple Peptide 6 tests, 5 passed, latest Oct 17, 2026 | 82.7 | 98 | 912d median | 67 | 85.8 |
| 8 | Peptide Maxxing 6 tests, 5 passed, latest Oct 15, 2026 | 84.0 | 94 | 823d median | 80 | 85.5 |
| 9 | Modern Aminos 6 tests, 5 passed, latest Jul 20, 2026 | 84.1 | 96 | 912d median | 61 | 85.0 |
| 10 | Crush Research 7 tests, 6 passed, latest Oct 9, 2026 | 87.3 | 96 | 823d median | 54 | 83.4 |
| 11 | Southern Aminos 7 tests, 5 passed, latest Oct 1, 2026 | 75.5 | 83 | 823d median | 70 | 77.9 |
| 12 | Peptidology 6 tests, 5 passed, latest Sep 12, 2026 | 84.0 | 84 | 823d median | 43 | 77.5 |
| 13 | Particle Peptides 7 tests, 5 passed, latest Sep 29, 2026 | 78.8 | 85 | 734d median | 65 | 77.1 |
| 14 | Polaris Peptides 7 tests, 4 passed, latest Oct 3, 2026 | 64.2 | 87 | 823d median | 76 | 75.2 |
| 15 | Ascension Peptides 4 tests, 3 passed, latest Sep 16, 2026 | 79.7 | 85 | 823d median | 28 | 73.7 |
| 16 | Biotech Peptides 6 tests, 4 passed, latest Oct 8, 2026 | 76.0 | 75 | 734d median | 49 | 71.1 |
| 17 | Core Peptides 6 tests, 4 passed, latest Oct 11, 2026 | 71.5 | 65 | 734d median | 55 | 67.7 |
| 18 | Limitless Biotech 6 tests, 3 passed, latest Oct 5, 2026 | 59.5 | 45 | 734d median | 67 | 59.7 |
| 19 | Swiss Chems 5 tests, 2 passed, latest Oct 14, 2026 | 55.2 | 55 | 645d median | 70 | 59.1 |
| 20 | Penguin Peptides 7 tests, 3 passed, latest Oct 19, 2026 | 53.6 | 43 | 645d median | 91 | 58.6 |
- 1Atomik Labz24 tests, latest Oct 24, 202697.3
- Purity
- 98.4
- Trust
- 100
- Delivery
- 100
- Value
- 86
- 2Solution Peptides20 tests, latest Sep 9, 202694.7
- Purity
- 97.8
- Trust
- 98
- Delivery
- 91
- Value
- 86
- 3ezPeps5 tests, latest Oct 2, 202689.2
- Purity
- 93.9
- Trust
- 94
- Delivery
- 82
- Value
- 78
- 4Ion Peptides8 tests, latest Oct 12, 202688.9
- Purity
- 88.9
- Trust
- 96
- Delivery
- 91
- Value
- 74
- 5Skye Peptides7 tests, latest Oct 6, 202685.9
- Purity
- 87.5
- Trust
- 96
- Delivery
- 82
- Value
- 70
- 6Peptide Partners8 tests, latest Oct 20, 202685.9
- Purity
- 85.3
- Trust
- 96
- Delivery
- 82
- Value
- 76
- 7Simple Peptide6 tests, latest Oct 17, 202685.8
- Purity
- 82.7
- Trust
- 98
- Delivery
- 91
- Value
- 67
- 8Peptide Maxxing6 tests, latest Oct 15, 202685.5
- Purity
- 84.0
- Trust
- 94
- Delivery
- 82
- Value
- 80
- 9Modern Aminos6 tests, latest Jul 20, 202685.0
- Purity
- 84.1
- Trust
- 96
- Delivery
- 91
- Value
- 61
- 10Crush Research7 tests, latest Oct 9, 202683.4
- Purity
- 87.3
- Trust
- 96
- Delivery
- 82
- Value
- 54
- 11Southern Aminos7 tests, latest Oct 1, 202677.9
- Purity
- 75.5
- Trust
- 83
- Delivery
- 82
- Value
- 70
- 12Peptidology6 tests, latest Sep 12, 202677.5
- Purity
- 84.0
- Trust
- 84
- Delivery
- 82
- Value
- 43
- 13Particle Peptides7 tests, latest Sep 29, 202677.1
- Purity
- 78.8
- Trust
- 85
- Delivery
- 73
- Value
- 65
- 14Polaris Peptides7 tests, latest Oct 3, 202675.2
- Purity
- 64.2
- Trust
- 87
- Delivery
- 82
- Value
- 76
- 15Ascension Peptides4 tests, latest Sep 16, 202673.7
- Purity
- 79.7
- Trust
- 85
- Delivery
- 82
- Value
- 28
- 16Biotech Peptides6 tests, latest Oct 8, 202671.1
- Purity
- 76.0
- Trust
- 75
- Delivery
- 73
- Value
- 49
- 17Core Peptides6 tests, latest Oct 11, 202667.7
- Purity
- 71.5
- Trust
- 65
- Delivery
- 73
- Value
- 55
- 18Limitless Biotech6 tests, latest Oct 5, 202659.7
- Purity
- 59.5
- Trust
- 45
- Delivery
- 73
- Value
- 67
- 19Swiss Chems5 tests, latest Oct 14, 202659.1
- Purity
- 55.2
- Trust
- 55
- Delivery
- 64
- Value
- 70
- 20Penguin Peptides7 tests, latest Oct 19, 202658.6
- Purity
- 53.6
- Trust
- 43
- Delivery
- 64
- Value
- 91
How to read the numbers.
- Overall
- 40% purity, 25% trust, 20% delivery, 15% value. Out of 100. Anything above 85 is strong, below 55 is weak.
- Purity
- Share of the vendor’s recent samples that met the standard, with newer results weighted more heavily and small histories pulled toward the board average.
- Trust
- Fixed points for each transparency check you can verify before paying: public certificates, lot matching, a named lab, re-checkable reports, mass spec identity, trading history, and a clean record.
- Delivery and value
- Delivery converts median business days to doorstep into points. Value compares the vendor’s median price per milligram with the market median for the same compounds.
Snapshot Oct 27, 2026. Full formula on the methodology page.