A US-based vendor that puts its testing front and center — HPLC purity, lot number, and a named third-party lab on every product page — with a deep catalog of research stacks. Here's our honest take, including the one thing that keeps it out of our top tier: price.
| Testing & COAs | Strong on transparency: each product page shows HPLC purity, lot number, analysis date, and a named third-party lab (MZ Biolabs). Mass-spectrometry referenced. Not independently graded (e.g. Finnrick). |
| Pricing | Premium. BPC-157 5mg ~$119, TB-500 ~$169, NAD+ ~$279 — well above the lowest-cost vetted vendors. |
| Catalog | Broad, with an unusually deep set of pre-built research stacks (recovery, longevity, cognitive, weight-loss). Singles: BPC-157, TB-500, GLP-1/2/3, GHK-Cu, MOTS-C, NAD+, Semax, Epithalon, AOD-9604, Tesamorelin, PT-141, and more. |
| Sourcing | US-based. |
| Program | 10% commission, 60-day cookie. Named affiliate manager (Brian Lettieri). |
| Compliance | Labeled and sold strictly for research use only. |
Spartan's strongest signal is per-product testing transparency. Rather than burying a single COA on a support page, each product lists an HPLC purity figure, the lot number, the analysis date, and the actual name of the third-party lab that ran the test (MZ Biolabs). That's the kind of batch-level detail a research buyer should want, and it's more than many vendors publish openly. The catalog is broad and notably deep on pre-built research stacks — combinations aimed at recovery, longevity, cognition, and weight-loss research — which is useful if you're sourcing several compounds at once.
The trade-off is price. Spartan sits at a clear premium: a 5mg BPC-157 vial runs about $119 where several other vetted vendors are in the mid-$30s, and that pattern holds across the catalog. The testing transparency is real, but it hasn't yet been corroborated by an independent grading service like Finnrick, and Spartan is a newer brand. So we treat it as a credible, transparency-forward option for researchers who value the published COA detail — while noting you'll pay more per vial than at the lowest-cost names. We rate on evidence and re-score as independent testing data accumulates; see our ranking methodology.
Buy directly from Spartan Peptides below. Each product is sold strictly for laboratory and research use — not for human consumption. Links are affiliate links, disclosed per FTC guidelines; you pay the same price.
Prices are starting points and change often. Every outbound buy link is an affiliate link, disclosed per FTC guidelines. Products listed are for laboratory and research purposes only — not for human consumption.
It's a US-based research-peptide vendor that publishes notably transparent testing — HPLC purity, lot number, analysis date, and a named third-party lab (MZ Biolabs) on each product page. It's a newer brand that hasn't been independently lab-graded yet, and it prices at a premium, but its published COA detail is a genuine strength.
Yes — each product page lists an HPLC purity figure, lot number, analysis date, and the testing lab. Not sure how to read one? See our guide to reading a COA.
Spartan positions as a premium brand — a 5mg BPC-157 vial is roughly $119 versus the mid-$30s at some vetted vendors. You're paying more per vial; whether the published-testing detail justifies that is your call as a researcher.
No standalone code — clicking any Spartan link on this site applies our affiliate tracking automatically. You pay the same price.
No. We're an independent research and comparison resource. We link to vetted third-party vendors and disclose every affiliate relationship per FTC guidelines.
Last reviewed June 2026. By the Peptides Uncaged Research Team. We update vendor scores as new testing and reputation data come in.
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