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Peptide Crafters is a live, low-priced vendor with a large body of independent test data, but thin company disclosure. When we checked on October 19, 2026, it had 60 independent tests listed on Finnrick and priced most compounds well below the median across the vendors in our price index. It does not publish an address, a company name or the labs that test its products.
Notice: Products from Peptide Crafters are sold for in-vitro laboratory research only. They are not FDA-approved and not for human or animal use. This review covers supplier transparency and prices only. We didn't buy or test any products. Some vendors pay us a commission when you buy through our links. That never changes a score or a price ranking.
Peptide Crafters at a glance
- Website: peptidecrafters.com, live when checked.
- Based in: not published on its site when we checked on October 19, 2026.
- Company: no legal entity, owner or founding year published.
- Testing labs/COAs: certificates page; endotoxin testing mentioned; no lab names found.
- Independent tests (Finnrick): 60 tests listed on Finnrick, most recent dated October 12, 2026.
- Payment: payment methods not published on the pages we checked.
- Gate: login gate (account or login to see products).
- Catalog: 49 peptide products listed.
- Checked: October 19, 2026.
Prices we checked
| Peptide | Size | Price | Per mg | vs index median |
|---|---|---|---|---|
| Retatrutide (listed as GLP-3 (R)) | 65mg | $295 | $4.54 | 41% below |
| Retatrutide (listed as GLP-3 (R)) | 10mg | $70 (was $80) | $7.00 | 9% below |
| BPC-157 | 10mg | $50 | $5.00 | 17% below |
| TB-500 | 10mg | $60 | $6.00 | 21% below |
| GHK-Cu | 100mg | $45 | $0.45 | 36% below |
| NAD+ | 1000mg | $85 (was $125) | $0.09 | 31% below |
| MOTS-c | 15mg | $55 | $3.67 | 18% below |
| Cagrilintide | 10mg | $95 | $9.50 | 26% below |
| Tesamorelin | 10mg | $55 (was $65) | $5.50 | 30% below |
| Epitalon | 80mg | $115 | $1.44 | 62% below |
| AOD-9604 | 5mg | $55 (out of stock) | $11.00 | 4% above |
Prices as listed on October 19, 2026. Of the 24 compounds we matched, AOD-9604 was the only one above the index median, and the large-vial blends (GLOW and KLOW) came in roughly 60-65% below. Compare retatrutide prices, BPC-157 prices and GHK-Cu prices across vendors, or browse the full price index.
Testing and COAs
Peptide Crafters has a dedicated certificates page, plus pages titled third-party testing and lab results. Its site mentions endotoxin testing, which many vendors skip.
What we could not find: the names of the labs that issue its certificates, and lot or batch numbers shown alongside the COAs. Without those, it is harder to tie a certificate to the vial you receive. The 60 Finnrick tests help here, since they come from independent testing rather than the vendor. We don't publish Finnrick ratings, so check the results on Finnrick for the compound you care about.
What we like
- 60 independent tests listed on Finnrick, the latest from October 12, 2026.
- Prices below the index median on 23 of 24 compounds we matched.
- A public certificates page and endotoxin testing mentioned.
- Large-vial options (65mg retatrutide, 1000mg NAD+, 100mg GHK-Cu) with low per-mg prices.
- Published refund, shipping and terms pages.
What to watch
- No address, company name or owner published.
- No testing labs named, and no lot numbers shown alongside COAs.
- A login gate stands between you and the catalog.
- Payment methods were not listed on the pages we checked.
- Some sizes were out of stock, including AOD-9604 and the 60mg retatrutide vial.
How it compares
On price, Peptide Crafters sits near the low end of what we track. On disclosure, it trails vendors that name their labs and match COAs to lots. See all vendors we track, peptide deals this week and our ranked list.
Bottom line
Peptide Crafters pairs low prices with a meaningful amount of independent test data. The gaps are on the company side: no address, no named labs and no lot-matched COAs we could find. Review its Finnrick tests for your compound before you order.
