Disclosure: Purgo Labs is our affiliate partner; we earn nothing from Midwest Peptide. 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
No contradictions among its own claims — No contradictions found across site claims (checked Aug 2026)
Publishes a legal entity and street address — PurgoLabs LLC (Arizona) · 10105 E Via Linda St Bld 103, Scottsdale, AZ — on-site (6 Sep 2026)
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 Midwest Peptide
Read 5 September 2026 on the vendor's own pages
A very large, very positive live review record attached to an unnamed laboratory. The certificates exist and carry batch numbers, but nothing lets a reader confirm who produced them. That gap is the whole story here.
Checks out
✓4.9 across 259 Trustpilot reviews on a claimed profile (read 5 Sep 2026). source
✓Certificates viewable pre-purchase with batch numbers, no account required. source
✓Full basket available with sized pricing: BPC-157 10mg $39.99, TB-500 10mg $49.99, NAD+ 500mg $69.99 (verified to the cent). source
✓Legal entity disclosed: Midwest BioResearch LLC, Mission, KS, with phone and email. source
Could not verify · flags
?The testing laboratory is not named anywhere on the vendor's site, despite 'accredited' and 'third-party 7x tested' language on every page. Certificates are vendor-hosted PNGs on a Supabase bucket, not verifiable at a lab.
?No street address — only a city.
?Measured net content vs label — certificate images not readable from outside.
!BPC-157 page describes the compound as a 43-amino-acid fragment in one section and a 17-residue fragment in the FAQ (it is 15 amino acids).
!GLP-1 SM page title states 20mg while the description states 10mg/3ml.
!GLP-class products sold under house codes (GLP-1 SM / GLP-2 TZ / GLP-3 RT) with the compound identity only in FAQ text.
Midwest BioResearch LLC · Mission, KS (no street address published) · (636) 734-2390
No lab-side lookup for this reportWhere we opened it Transcribed by Compound Review; the laboratory's report is the record.
Where Midwest Peptide ranks by compound
Midwest Peptide appears in 4 of our compound rankings. Each ranking orders every scored vendor that sells the compound by rubric score, then verified price per mg.
2026-09-067/10 — re-issued under rubric v2 (was 4/8); not awarded: lab-hosted, claims-consistent, 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.
Midwest Peptide: the caveat
The lab (Precision Mass Spec) appears only on the certificate, never in page text; the certificate (lot MPBP007-MWP-BPCW-0821) reports 11.04mg vs 10mg label but offers no lab-side lookup. No street address. GLP-class products sold under house codes with the identity only in FAQ text; the BPC-157 page contradicts itself on the peptide's length.
07
Where the evidence points
Where the evidence points
Purgo Labs 10/10
We earn nothing from Midwest Peptide. Purgo Labs holds every rubric point — certificates checkable at the lab, measured net content per lot — and is cheaper after codes on 3 of 3 like-for-like vials.
Purgo Labs, on the evidence: 10/10 rubric points against 7/10. Midwest Peptide is stronger on 5 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 Midwest Peptide legit?
Midwest Peptide scores 7/10 on our rubric, has an independently viewable rating of 4.9 (331 reviews), and names its lab (Precision Mass Spec (on certificates)). Caveat: The lab (Precision Mass Spec) appears only on the certificate, never in page text; the certificate (lot MPBP007-MWP-BPCW-0821) reports 11.04mg vs 10mg label but offers no lab-side lookup. No street address. GLP-class products sold under house codes with the identity only in FAQ text; the BPC-157 page contradicts itself on the peptide's length.
Which is cheaper, Purgo Labs or Midwest Peptide?
On the 3 compound-and-size rows where we have dated prices from both, Midwest Peptide lists lower on 1 and Purgo Labs on 1 (1 equal). 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 Midwest Peptide. Scores come from the rubric, which has no partnership input, and the ordering rule on our scoreboard is disclosed.