Third-party lab testing: 5 independent Janoshik assays on file, covering 5 substances, median measured purity 99.7%, most recent test 2025-11-03.
Finnrick, an independent testing programme, publishes 438 assays for HK Peptides: 342 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 92 did not. Most recent assay 3 Aug 2026.
HK Peptides operates from Hong Kong, China., listed by Finnrick as "Trading". Source: Finnrick, https://www.finnrick.com/vendors/hk-peptides.
HK Peptides sells to businesses rather than direct to researchers and operates from China. It lists 15 products.
In its own words: “HK peptide is a company focusing on Peptide research. The company has strong research and development capabilities and exquisite synthesis technology. We have ensured unparalleled prices to ensure the highest quality and purity of our products to express our respect for you. .”
HK Peptides names Janoshik Analytical in its copy but publishes no certificates, so there is nothing on the site to check that against. Of the 12 product pages we opened, 1 state ≥99% purity.
No prices are published. You have to ask over messaging before you can compare cost against another supplier.
Worth knowing before you order: self-signed TLS certificate, consumer email only, and no research-use-only notice. The site presents a self-signed certificate (issuer: SelfSignedCA / *). Browsers show a full-page security warning before the site loads, and data entered on it, including contact details and any payment information, is not protected by a certificate any browser trusts.
Site check: 15 products listed; operates from China.
HK Peptides is listed as active. Finnrick Grade C. Finnrick avg score: 7/10 across 397 samples (12 products). Mixed quality — some products test well, others below average.
HK Peptides holds independent lab grade C, assigned across 397 graded samples, average score 7/10. That grade comes from an independent grader's own sampling, not from PeptideAtlas, and it describes the samples that grader obtained rather than every batch sold.
| Substance | Measured purity | Test date |
|---|---|---|
| HGH 24 IU | 95.42% | 2025-11-03 |
| KPV 10mg | 99.79% | 2025-04-09 |
| Tirzepatide 30mg | 99.70% | 2024-09-30 |
| Tirzepatide 10mg | 99.70% | 2024-09-30 |
| Nad+ 500mg | not reported | 2024-09-26 |
4 of these 5 assays report a measured purity figure. The other 1 confirm the substance was submitted and tested but carry no purity number on the certificate, which is not the same as a failed result.
| Product | Assays | Result |
|---|---|---|
| Retatrutide | 135 | 115 passed, 19 failed |
| Tirzepatide | 125 | 108 passed, 15 failed |
| GHK-Cu | 48 | 41 passed, 7 failed |
| Tesamorelin | 33 | 15 passed, 18 failed |
| BPC-157 | 21 | 18 passed, 3 failed |
| Ipamorelin | 13 | 7 passed, 6 failed |
| Melanotan II | 12 | 8 passed, 3 failed |
| Cagrilintide | 10 | 7 passed, 3 failed |
| CJC-1295 | 10 | 3 passed, 7 failed |
| Semaglutide | 10 | 6 passed, 4 failed |
| TB-500 | 9 | 5 passed, 4 failed |
| PT-141 | 7 | 6 passed, 1 failed |
| Sermorelin | 5 | 3 passed, 2 failed |
Source: Finnrick, as published 2026-08-09. Pass and fail are Finnrick's classification against its own threshold, not ours.
| Status | Active |
|---|---|
| Independent lab grade | C (397 samples) |
| Average grader score | 7/10 |
| Independent assays on file | 5 |
| Median measured purity | 99.7% |
| Vendor type | Research-use supplier |
| Satisfaction | 0.4/5 |
|---|---|
| Delivery | 4.4/5 |
| Customer service | 4.8/5 |
| Packaging | 4.6/5 |
| Ease of purchase | 4.6/5 |
| Payment | 4.2/5 |
Scored out of 5 by the same independent grader, from its own buyers rather than from this site.
This vendor advertises ≥99%. Across 5 independent Janoshik assays of its products, median measured purity is 99.7%, most recently 2025-11-03.
These details were read from HK Peptides's own website on 2026-08-10. Pages consulted:
HK Peptides is listed as active and we hold 5 independent Janoshik assays on file, median measured purity 99.7%; 438 Finnrick assays (342 passing, 92 failing its purity threshold); an independent lab grade of C. That is evidence about the batches that were tested or published, not a guarantee about the vial you receive.
Yes. We hold 5 third-party Janoshik assays for HK Peptides, covering 5 substances, with a median measured purity of 99.7%. The most recent is dated 2025-11-03. Finnrick, an independent testing programme, publishes 438 assays for HK Peptides: 342 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 92 did not. Most recent assay 3 Aug 2026.
HK Peptides ships from China.
Tested substances: KPV 10mg, Tirzepatide 30mg, Tirzepatide 10mg, Nad+ 500mg.
Similar vendors: Cocer Peptides, Peptide Gurus, Qingdao Sigma Chemical QSC, Eros Peptides, Reta-Peptide, Zztai Peptide, Alpha BioPharma, Henan Sahe Peptide.
Popular peptides: Semaglutide, Tirzepatide, Retatrutide, BPC-157, CJC-1295, Ipamorelin.
Compare this vendor: BioTech Peptides vs HK Peptides, Hangzhou Mandy Biotechnology vs HK Peptides, HK Peptides vs LA Peptides, HK Peptides vs Modern Peptides, HK Peptides vs Peptide Sciences.
Other reviewed vendors: HKPep Review, HkRoids Peptides Review, Holly SQS Peptides Review.