Third-party lab testing: 11 independent Janoshik assays on file, covering 11 substances, median measured purity 99.6%, most recent test 2026-01-23.
Finnrick, an independent testing programme, publishes 38 assays for Hangzhou Mandy Biotechnology: 27 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 10 did not. Most recent assay 5 Aug 2026.
Hangzhou Mandy Biotechnology listed by Finnrick as "Trading". Source: Finnrick, https://www.finnrick.com/vendors/hangzhou-mandy-biotechnology.
Hangzhou Mandy Biotechnology sells to businesses rather than direct to researchers and operates from Hong Kong. It lists 264 products, including Cagrilintide, ARA-290 (Cibinetide), Snap-8, Cerebrolysin, Dermorphin, and LL-37, plus 30 other compounds. It also produces and labels to order, so stock sold under other brand names may come from here.
In its own words: “Hangzhou Mandy Biotechnology Co., Ltd. is a professional manufacturer of peptides, with its own research and development and production line. It focuses on the development, production and customization of high-quality peptides, relying on advanced technical strength and strict quality control system. In our laboratory, we conduct strict internal tests at each stage of production. Our peptides have been fully verified”
Of the 12 product pages we opened, every one links its own certificate.
No prices are published. You have to ask over messaging before you can compare cost against another supplier. Payment is by cryptocurrency. Orders ship with DHL, FedEx, UPS, USPS, EMS, and TNT.
Worth knowing before you order: no card payments, consumer email only, and no research-use-only notice. Payment is limited to cryptocurrency (USDT, USDC, BTC, ETH). Neither route carries the chargeback protection a card payment gives you if an order never arrives or arrives wrong.
Site check: 264 products listed; payment by cryptocurrency; ships via DHL, FedEx, UPS, USPS, EMS, TNT; operates from Hong Kong.
Hangzhou Mandy Biotechnology is listed as active. Finnrick Grade C. Finnrick avg score: 6.9/10 across 20 samples (2 products). Mixed quality — some products test well, others below average.
Hangzhou Mandy Biotechnology holds independent lab grade C, assigned across 20 graded samples, average score 6.9/10. 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.
Community standing: 1.8/5 on Trustpilot from 20 reviews. Ratings of anonymous sellers of unregulated products are the weakest signal on this page; the assay and grading records carry more.
| Substance | Measured purity | Test date |
|---|---|---|
| Rt30 | 99.90% | 2026-01-23 |
| Hgh24iu. | 97.31% | 2025-12-30 |
| HGH 24iu. | 96.25% | 2025-12-22 |
| Mots-c 10mg | 99.56% | 2025-09-09 |
| HGH 10iu | 93.30% | 2025-09-09 |
| Tesamorelin 10mg | 99.32% | 2025-09-01 |
| Tb500 5mg | 99.79% | 2025-08-28 |
| Retatrutide 40mg | 99.85% | 2025-08-28 |
| Tirzepatide 40mg | 99.93% | 2025-08-28 |
| Klow80 BPC Tb500 Ghk-cu KPV 80mg | not reported | 2025-10-29 |
| Nad+ 500mg | not reported | 2025-08-28 |
9 of these 11 assays report a measured purity figure. The other 2 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 | 14 | 10 passed, 4 failed |
| Tirzepatide | 13 | 9 passed, 3 failed |
| GHK-Cu | 6 | 5 passed, 1 failed |
| BPC-157 | 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 (20 samples) |
| Average grader score | 6.9/10 |
| Trustpilot | 1.8/5 from 20 reviews |
| Independent assays on file | 11 |
| Median measured purity | 99.6% |
| Vendor type | Research-use supplier |
This vendor advertises 99%. Across 11 independent Janoshik assays of its products, median measured purity is 99.6%, most recently 2026-01-23.
These details were read from Hangzhou Mandy Biotechnology's own website on 2026-08-10. Pages consulted:
Hangzhou Mandy Biotechnology is listed as active and we hold 11 independent Janoshik assays on file, median measured purity 99.6%; 38 Finnrick assays (27 passing, 10 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 11 third-party Janoshik assays for Hangzhou Mandy Biotechnology, covering 11 substances, with a median measured purity of 99.6%. The most recent is dated 2026-01-23. Finnrick, an independent testing programme, publishes 38 assays for Hangzhou Mandy Biotechnology: 27 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 10 did not. Most recent…
Hangzhou Mandy Biotechnology accepts Cryptocurrency. Cryptocurrency is the only option, which means no chargeback protection if an order goes wrong.
Hangzhou Mandy Biotechnology ships from Hong Kong and uses DHL and FedEx and UPS and USPS and EMS and TNT.
Tested substances: Mots-c 10mg, Tesamorelin 10mg, Nad+ 500mg, Retatrutide 40mg, Tirzepatide 40mg.
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Popular peptides: Semaglutide, Tirzepatide, Retatrutide, BPC-157, CJC-1295, Ipamorelin.
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