Spartan Peptides has decent disclosure but some of the highest prices we track. It lists Tucson, Arizona, names MZ Bio as its lab and publishes COAs tied to lot numbers. But every price we checked on October 19, 2026 was between two and four times the median across the vendors in our price index. We found no Finnrick tests for it.
Notice: Spartan Peptides' 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 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.
Spartan Peptides at a glance
- Website: spartanpeptides.com, live when checked on October 19, 2026.
- Based in: Tucson, AZ.
- Company: no legal entity or founding year was published on its site when we checked.
- Testing labs/COAs: names MZ Bio; COAs on its quality assurance page with lot or batch numbers.
- Independent tests (Finnrick): we found no Finnrick tests for it.
- Payment: ACH and eCheck.
- Gate: none recorded; products and prices were public.
- Catalog: 9 peptide products listed.
- Checked: October 19, 2026.
Prices we checked
| Peptide | Size | Price | Per mg | vs index median |
|---|---|---|---|---|
| GLP-2 (Tirz) (tirzepatide) | 10mg | $250 | $25.00 | 317% above |
| BPC-157 | 5mg | $119 | $23.80 | 297% above |
| NAD+ | 750mg | $279 | $0.37 | 186% above |
| Tesamorelin | 5mg | $159 | $31.80 | 307% above |
| Epithalon | 25mg | $199 | $7.96 | 112% above |
Prices as listed on October 19, 2026. Those were the only five priced items we could read. Compare tirzepatide prices, BPC-157 prices, NAD+ prices, tesamorelin prices and our full price index.
Testing and COAs
Spartan Peptides publishes COAs on a quality assurance page, names MZ Bio as a testing lab, and lists lot or batch numbers alongside reports. That's a useful setup: you can match a certificate to a specific lot. The site also has a page about its research team.
What's missing: we didn't find any mention of endotoxin or sterility testing, and we found no Finnrick tests, so there is no independent data to set against the vendor's own reports.
What we like
- City published (Tucson, AZ).
- Named testing lab (MZ Bio).
- Lot-matched COAs.
- ACH and eCheck payment listed.
- Return and shipping policy pages published; the site advertises free and same-day shipping.
What to watch
- Every price we checked was 112% to 317% above the index median.
- Small catalog: 9 products.
- No company name or founding year published.
- No endotoxin or sterility testing mentioned.
- No Finnrick tests found.
- Tirzepatide listed under a code name, GLP-2 (Tirz).
How it compares
Many vendors with similar or better disclosure charge far less. See all vendors we track, peptide deals this week and our ranked list.
Bottom line
Spartan Peptides does the basics of disclosure, with a named lab and lot-matched COAs. Its prices are hard to justify against the market, so compare per-mg costs before ordering.
Last checked October 19, 2026.
