Disclosure: Purgo Labs is our affiliate partner; we earn nothing from Biotech Peptides. Scores come from the public rubric, which has no partnership input.
Research use only. Compound Review scores vendors on documentation — laboratory certificates, lot records, pricing and company identity. Nothing on this page is guidance on human or veterinary use, dosing or health outcomes.
01
Where each vendor is stronger
Computed from the rubric, prices and review record — never curated
Purgo Labs
Certificates verifiable at the lab, not just the vendor — Verify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com
Publishes measured net content vs label — Measured net peptide published per lot (e.g. BPC-157 lot PL-BPC-05: 11.16mg vs 10mg label)
Independent review base (50+ on an external platform) — 4.7 / 99 on Trustpilot (re-read 2 Oct 2026; was 4.7 / 95 on Trustpilot)
Publishes a legal entity and street address — PurgoLabs LLC (Arizona) · 10105 E Via Linda St Bld 103, Scottsdale, AZ — on-site (6 Sep 2026)
Lower list price on 2 of 2 like-for-like rows.
Larger independent review base: 4.7 (99 reviews) vs none on record.
Biotech Peptides
MZ Biolabs (2102 N Country Club Rd, Tucson, AZ) certificate for BPC-157 10mg lot 3140012, analysis 15 Jul 2026, purity 99.88% by HPLC-UV-MS with the chromatogram and two-peak table printed and the analyst named.
Catalog, prices and certificate PDFs viewable without an account; sized pricing on product pages (BPC-157 10mg $92, TB-500 10mg $124, read 18 Sep 2026).
02
The 10 criteria, side by side
10/10 vs 6/10 · one point each, no weighting
Named lab
PurgoSteriGenix and Freedom Diagnostics named per lot
SteriGenix and Freedom Diagnostics named per lot
BiotechMZ Biolabs (2102 N Country Club Rd, Tucson, AZ) printed on the BPC-157 10mg certificate, analyst named — read 19 Sep 2026
MZ Biolabs (2102 N Country Club Rd, Tucson, AZ) printed on the BPC-157 10mg certificate, analyst named — read 19 Sep 2026
Lab-hosted COAs
PurgoVerify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com
Verify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com
BiotechNot awarded
Per-lot COAs
PurgoLot numbers (e.g. PL-BPC-05) with test dates per batch
Lot numbers (e.g. PL-BPC-05) with test dates per batch
BiotechLot 3140012 on the certificate, analysis 15 Jul 2026; certificate filename carries lot and date
Lot 3140012 on the certificate, analysis 15 Jul 2026; certificate filename carries lot and date
Net content
PurgoMeasured net peptide published per lot (e.g. BPC-157 lot PL-BPC-05: 11.16mg vs 10mg label)
Measured net peptide published per lot (e.g. BPC-157 lot PL-BPC-05: 11.16mg vs 10mg label)
BiotechNot awarded
Ungated
PurgoCOAs on product pages without login
COAs on product pages without login
BiotechCatalog, prices and certificate PDFs viewable without an account (18–19 Sep 2026)
Catalog, prices and certificate PDFs viewable without an account (18–19 Sep 2026)
Review base
Purgo4.7 / 99 on Trustpilot (re-read 2 Oct 2026; was 4.7 / 95 on Trustpilot)
4.7 / 99 on Trustpilot (re-read 2 Oct 2026; was 4.7 / 95 on Trustpilot)
BiotechNot awarded
Consistent claims
PurgoNo contradictions found across site claims (checked Aug 2026)
No contradictions found across site claims (checked Aug 2026)
Biotech'Independently tested' and '>99% purity' claims match the MZ Biolabs certificate (99.88%); no on-site rating claim found (read 19 September 2026)
'Independently tested' and '>99% purity' claims match the MZ Biolabs certificate (99.88%); no on-site rating claim found (read 19 September 2026)
Sized pricing
PurgoProduct pages state vial size with price (e.g. BPC-157 10mg at $44.99; 24 dated size+price readings on record)
Product pages state vial size with price (e.g. BPC-157 10mg at $44.99; 24 dated size+price readings on record)
Only vials both vendors list at the same size, read on each vendor's product page on the date shown. "After code" is list × the code's stated discount — a calculation, labelled as one; stacking with sale pricing is not cart-tested.
04
What we found at Biotech Peptides
Read 19 September 2026 on the vendor's own pages
A real lab, a real lot, a real address — and a purity-only certificate that never weighs the vial, hosted only by the vendor. With the review profile gone and no legal entity named, the documentation is mid-table at premium prices.
Checks out
✓MZ Biolabs (2102 N Country Club Rd, Tucson, AZ) certificate for BPC-157 10mg lot 3140012, analysis 15 Jul 2026, purity 99.88% by HPLC-UV-MS with the chromatogram and two-peak table printed and the analyst named. source
✓Catalog, prices and certificate PDFs viewable without an account; sized pricing on product pages (BPC-157 10mg $92, TB-500 10mg $124, read 18 Sep 2026). source
✓Street address and phone on the contact page: 8275 S Eastern Ave Suite 200, Las Vegas, NV 89123; 619-453-0156. source
Could not verify · flags
?Measured net content — the certificate reports purity only, so it cannot tell you how many milligrams are in the vial.
?The certificate outside the vendor — it is a vendor-hosted PDF with no lab-side lookup code.
?Any independent review record — the Trustpilot profile has been removed (19 Sep 2026).
?A legal entity name — none printed on the homepage, contact page or footer.
!Trustpilot profile removed for guideline violations (read 19 Sep 2026).
!Among the highest basket prices in our index: BPC-157 10mg at $92 against a $35–$50 norm.
No legal entity name found · 8275 S Eastern Ave Suite 200, Las Vegas, NV 89123 · 619-453-0156 — contact page (19 Sep 2026).
Biotech Peptides appears in 2 of our compound rankings. Each ranking orders every scored vendor that sells the compound by rubric score, then verified price per mg.
2026-09-196/10 — first assessment (rubric v2); not awarded: lab-hosted, net-content, review-base (Trustpilot removed), identity
Purgo Labs: the caveat
Smaller independent review base than several competitors (80 reviews). The catalog is peptide-focused, so researchers also working with SARMs or broader research chemicals will need a second supplier.
Biotech Peptides: the caveat
Certificate is a vendor-hosted PDF with no lab-side lookup and no measured net content — purity only, so it cannot tell you how many milligrams are in the vial. Trustpilot profile REMOVED (read 19 Sep 2026). No legal entity name is printed anywhere we could find; the address is a suite in a Las Vegas office building. Prices sit at the top of our index for the basket.
07
Where the evidence points
Where the evidence points
Purgo Labs 10/10
We earn nothing from Biotech Peptides. Purgo Labs holds every rubric point — certificates checkable at the lab, measured net content per lot — and is cheaper after codes on 2 of 2 like-for-like vials.
Purgo Labs, on the evidence: 10/10 rubric points against 6/10. Biotech Peptides is stronger on 2 points listed below. Every point is a fact you can check on either vendor's site; both are scored by the same published rubric.
Is Biotech Peptides legit?
Biotech Peptides scores 6/10 on our rubric, has no independent record (its Trustpilot profile has been removed), and names its lab (MZ Biolabs). Caveat: Certificate is a vendor-hosted PDF with no lab-side lookup and no measured net content — purity only, so it cannot tell you how many milligrams are in the vial. Trustpilot profile REMOVED (read 19 Sep 2026). No legal entity name is printed anywhere we could find; the address is a suite in a Las Vegas office building. Prices sit at the top of our index for the basket.
Which is cheaper, Purgo Labs or Biotech Peptides?
On the 2 compound-and-size rows where we have dated prices from both, Biotech Peptides lists lower on 0 and Purgo Labs on 2. Purgo's list prices drop 20% with code HEALTH.
Do you earn money from either vendor?
Purgo Labs is our affiliate partner and we earn a commission on referred orders; we earn nothing from Biotech Peptides. Scores come from the rubric, which has no partnership input, and the ordering rule on our scoreboard is disclosed.