Third-party lab testing: 19 independent Janoshik assays on file, covering 17 substances, median measured purity 99.6%, most recent test 2025-11-20.
Finnrick, an independent testing programme, publishes 245 assays for Reta-Peptide: 185 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 59 did not. Most recent assay 3 Aug 2026.
Reta-Peptide operates from US, listed by Finnrick as "Trading". Source: Finnrick, https://www.finnrick.com/vendors/reta-peptide.
Reta-Peptide sells direct to researchers and at wholesale, and operates from China. It lists 35 products, including Semaglutide, Tirzepatide, Semax, Epithalon, LL-37, and IGF-1 LR3, plus 18 other compounds. It also produces and labels to order, so stock sold under other brand names may come from here.
In its own words: “RETA-EPTIDE is a manufacturer of peptides, have our own research lab, and production line.”
Of the 12 product pages we opened, 4 state ≥99% purity and every one links its own certificate.
Prices run from $10.00 to $687.00 across 35 listed products. Payment is by cryptocurrency and bank transfer. Orders ship with DHL, FedEx, UPS, and USPS.
Worth knowing before you order: no card payments, no research-use-only notice, and no free reshipment. Payment is limited to cryptocurrency (USDT, USDC, BTC) and bank transfer. Neither route carries the chargeback protection a card payment gives you if an order never arrives or arrives wrong.
Site check: 35 products listed; payment by cryptocurrency, bank transfer; ships via DHL, FedEx, UPS, USPS; operates from China.
Reta-Peptide is listed as active. Finnrick Grade D. Finnrick avg score: 7.4/10 across 177 samples (10 products). Below-average quality. Exercise caution.
Reta-Peptide holds independent lab grade D, assigned across 177 graded samples, average score 7.4/10. 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 |
|---|---|---|
| Tesamorelin | 99.04% | 2025-11-19 |
| Cjc-1295 With DAC 5 | 98.28% | 2025-11-19 |
| Cagrilintide | 99.34% | 2025-11-19 |
| Semaglutide | 99.62% | 2025-11-19 |
| Retatrutide | 99.48% | 2025-11-19 |
| Tirzepatide | 99.86% | 2025-11-19 |
| Tirzepatide 30mg | 99.78% | 2025-07-22 |
| Tesamorelin 10mg | 99.08% | 2025-07-19 |
| Cagrilintide 10mg | 99.66% | 2025-07-19 |
| Retatrutide 10mg | 99.66% | 2025-07-19 |
| KLOW (ghk Or Ghk-cu/ Tb-500/ Bpc-157/ Kpv) | not reported | 2025-11-20 |
| Bpc-157/tb-500 Blend | not reported | 2025-11-20 |
10 of these 12 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.
All 19 lab tests for Reta-Peptide
| Product | Assays | Result |
|---|---|---|
| Retatrutide | 81 | 68 passed, 12 failed |
| Tirzepatide | 36 | 32 passed, 4 failed |
| GHK-Cu | 27 | 26 passed, 1 failed |
| Tesamorelin | 18 | 8 passed, 10 failed |
| BPC-157 | 17 | 9 passed, 8 failed |
| Ipamorelin | 15 | 14 passed, 1 failed |
| TB-500 | 12 | 5 passed, 7 failed |
| CJC-1295 | 9 | 3 passed, 6 failed |
| MOTS-c | 8 | 5 passed, 3 failed |
| Melanotan II | 5 | 3 passed, 2 failed |
| PT-141 | 5 | 4 passed, 1 failed |
| Cagrilintide | 4 | 3 passed, 1 failed |
| NAD+ | 4 | 2 passed, 2 failed |
| SS-31 | 4 | 3 passed, 1 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 | D (177 samples) |
| Average grader score | 7.4/10 |
| Independent assays on file | 19 |
| Median measured purity | 99.6% |
| Vendor type | Research-use supplier |
This vendor advertises ≥99%. Across 19 independent Janoshik assays of its products, median measured purity is 99.6%, most recently 2025-11-20.
These details were read from Reta-Peptide's own website on 2026-08-10. Pages consulted:
Reta-Peptide is listed as active and we hold 19 independent Janoshik assays on file, median measured purity 99.6%; 245 Finnrick assays (185 passing, 59 failing its purity threshold); an independent lab grade of D. That is evidence about the batches that were tested or published, not a guarantee about the vial you receive.
Yes. We hold 19 third-party Janoshik assays for Reta-Peptide, covering 17 substances, with a median measured purity of 99.6%. The most recent is dated 2025-11-20. Finnrick, an independent testing programme, publishes 245 assays for Reta-Peptide: 185 met its Purity focus threshold (at least 99.5% purity, no more than 35% dosage deviation) and 59 did not. Most recent assay 3 Aug 2026.
Reta-Peptide accepts Cryptocurrency, Bank Transfer.
Reta-Peptide ships from China and uses DHL and FedEx and UPS and USPS.
Tested substances: KLOW (ghk Or Ghk-cu/ Tb-500/ Bpc-157/ Kpv), Tesamorelin, Cjc-1295 With DAC 5, Cagrilintide, Semaglutide, Retatrutide, Tirzepatide, Tirzepatide 30mg, Tesamorelin 10mg, Cagrilintide 10mg, Retatrutide 10mg, Tirzepatide 60mg.
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Popular peptides: Semaglutide, Tirzepatide, Retatrutide, BPC-157, CJC-1295, Ipamorelin.
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