PurePeptides has solid independent test data, but its own COA documentation and business details are thin. As of October 19, 2026, Finnrick lists 25 tests for it, the latest from October 12, 2026. The site names MZ Bio and mentions endotoxin testing, but we found no COA page, location or company name.
Notice: PurePeptides' products 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. 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.
PurePeptides at a glance
- Website: purepeptides.bio, live when checked.
- Based in: not published on its site when we checked on October 19, 2026.
- Company: no legal entity or founding year published.
- Testing labs/COAs: names MZ Bio; no COA page found.
- Independent tests (Finnrick): 25 tests listed on Finnrick, latest October 12, 2026.
- Payment: Zelle, ACH, Bitcoin, other crypto.
- Gate: none.
- Catalog: 20 peptide products listed.
- Checked: October 19, 2026.
Prices we checked
| Peptide | Size | Price | Per mg | vs index median |
|---|---|---|---|---|
| BPC-157 | 10mg | $50.00 | $5.00 | 17% below |
| TB-500 (Thymosin Beta 4) | 10mg | $75.00 | $7.50 | 1% below |
| GHK-Cu | 100mg | $65.00 | $0.65 | 7% below |
| NAD+ | 500mg | $90.00 | $0.18 | 38% above |
| MOTS-c | 40mg | $125.00 | $3.12 | 31% below |
| Ipamorelin/CJC-1295 (no DAC) | 10mg | $75.00 | $7.50 | 25% above |
| Ipamorelin | 5mg | $45.00 | $9.00 | 45% above |
| PT-141 | 10mg | $45.00 | $4.50 | at median |
| Tesamorelin | 10mg | $80.00 | $8.00 | 2% above |
| Thymosin Alpha-1 | 20mg | $135.00 (was $145.00) | $6.75 | 15% below |
| GLOW | 70mg | $85.00 | $1.21 | 21% below |
Prices as listed on October 19, 2026. PurePeptides is mixed against the median across the vendors in our price index. BPC-157, MOTS-c and GLOW were cheaper, while NAD+ and Ipamorelin were well above it. KLOW (80mg, $175) was out of stock and 36% above the median. Compare BPC-157 prices, MOTS-c prices, NAD+ prices and Ipamorelin prices, or browse the full price index.
Testing and COAs
The independent record is the main point in PurePeptides' favor. Finnrick, which tests samples that buyers submit, lists 25 tests for this vendor, and the latest is recent (October 12, 2026). We don't report Finnrick ratings here, so check the results for your compound on Finnrick.
On its own site, PurePeptides names MZ Bio and mentions endotoxin or sterility testing. We could not find a COA page, and we couldn't confirm that certificates are matched to lot or batch numbers.
What we like
- 25 independent tests on Finnrick, the latest from October 12, 2026.
- A named lab (MZ Bio) and endotoxin or sterility testing mentioned.
- Clear shipping terms: 1-2 business days to ship, USPS Priority or Priority Express.
- Lower-than-median prices on BPC-157, MOTS-c and Thymosin Alpha-1.
What to watch
- No COA page found, and no lot-matched certificates confirmed.
- No address, location or company name published.
- Payment is bank transfer or crypto only, with no card option listed.
- NAD+ and Ipamorelin were priced well above the median.
How it compares
Few of the vendors we track have this much Finnrick data, but many publish a COA library and an address, which PurePeptides does not. See peptide deals this week and our ranked list.
Bottom line
PurePeptides is worth a look for its independent test record and some below-median prices. Before ordering, ask for the COA for your lot, since we found no public COA page as of October 19, 2026.
