Disclosure: Purgo Labs is our affiliate partner; we earn nothing from Northline Labs. 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
No contradictions among its own claims — No contradictions found across site claims (checked Aug 2026)
No misleading trust signals or buyer-protection workarounds — No on-site review badge contradicting the independent record; card payment accepted; no regulator action found (checked 6 Sep 2026)
Horizon Analytical printed on the BPC-157 certificate (lot NLL-1444543), 'Searchable via horizonanalytical.com'; the report states 19.82mg measured vs 20mg spec, 99.4% purity (analysis 8 Aug 2026).
Legal entity now published: 'Northline Labs is a brand of WA Consulting LLC' on the About page, with a Sheridan, WY address on the Contact page (24 Sep 2026).
02
The 10 criteria, side by side
10/10 vs 8/10 · one point each, no weighting
Named lab
PurgoSteriGenix and Freedom Diagnostics named per lot
SteriGenix and Freedom Diagnostics named per lot
NorthlineHorizon Analytical printed on the BPC-157 certificate (lot NLL-1444543, 'Searchable via horizonanalytical.com') — read 6 Sep 2026
Horizon Analytical printed on the BPC-157 certificate (lot NLL-1444543, 'Searchable via horizonanalytical.com') — read 6 Sep 2026
Lab-hosted COAs
PurgoVerify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com
Verify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com
NorthlineCertificate states 'Searchable via: horizonanalytical.com' (lab-side lookup)
Certificate states 'Searchable via: horizonanalytical.com' (lab-side lookup)
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
NorthlineLot-traceable COA lookup per order
Lot-traceable COA lookup per order
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)
NorthlineCertificate reports 19.82mg measured vs 20mg spec, 99.4% purity (analysis 8 Aug 2026)
Certificate reports 19.82mg measured vs 20mg spec, 99.4% purity (analysis 8 Aug 2026)
Ungated
PurgoCOAs on product pages without login
COAs on product pages without login
NorthlineCOA lookup public
COA lookup public
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)
Northline4.3 / 501 on Trustpilot (re-read 2 Oct 2026; was 4.3 / 495 on Trustpilot)
4.3 / 501 on Trustpilot (re-read 2 Oct 2026; was 4.3 / 495 on Trustpilot)
Consistent claims
PurgoNo contradictions found across site claims (checked Aug 2026)
No contradictions found across site claims (checked Aug 2026)
NorthlineNot awarded
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)
NorthlineSizes in product names for single-size items
Sizes in product names for single-size items
Entity + address
PurgoPurgoLabs LLC (Arizona) · 10105 E Via Linda St Bld 103, Scottsdale, AZ — on-site (6 Sep 2026)
PurgoLabs LLC (Arizona) · 10105 E Via Linda St Bld 103, Scottsdale, AZ — on-site (6 Sep 2026)
NorthlineWA Consulting LLC ("Northline Labs is a brand of WA Consulting LLC", /about-northline/) · 30 N Gould St STE R, Sheridan, WY 82801 on /contact/ — a registered-agent suite, disclosed as such (read 24 Sep 2026)
WA Consulting LLC ("Northline Labs is a brand of WA Consulting LLC", /about-northline/) · 30 N Gould St STE R, Sheridan, WY 82801 on /contact/ — a registered-agent suite, disclosed as such (read 24 Sep 2026)
Clean record
PurgoNo on-site review badge contradicting the independent record; card payment accepted; no regulator action found (checked 6 Sep 2026)
No on-site review badge contradicting the independent record; card payment accepted; no regulator action found (checked 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 Northline Labs
Read 24 September 2026 on the vendor's own pages
The certificate is good and now there is a company name behind the brand; the homepage review badge is not, and the vendor's first Trustpilot profile was taken down. Not an affiliate partner.
Checks out
✓Horizon Analytical printed on the BPC-157 certificate (lot NLL-1444543), 'Searchable via horizonanalytical.com'; the report states 19.82mg measured vs 20mg spec, 99.4% purity (analysis 8 Aug 2026). source
✓Legal entity now published: 'Northline Labs is a brand of WA Consulting LLC' on the About page, with a Sheridan, WY address on the Contact page (24 Sep 2026). source
✓4.3 across 495 Trustpilot reviews on the active northlinelabs.org profile (read 24 Sep 2026). source
Could not verify · flags
?The laboratory is never named in page text — 'an accredited laboratory' on /quality/ — only on the certificate.
?The published address, 30 N Gould St STE R, Sheridan, WY, is a registered-agent suite used by many companies, not an operating location.
?The most recent visible Trustpilot review is dated 24 Jun 2026 — three months of silence on a 495-review profile.
!Homepage badge '4.8★ 12,000+ reviews' vs the live Trustpilot profile at 4.3 across 495 reviews (24 Sep 2026); an earlier version of the same page showed 12,000+ and 1,200+ side by side.
!The original northlinelabs.com Trustpilot profile was removed by Trustpilot with a guidelines notice (18 Sep 2026); the vendor now points to a northlinelabs.org profile.
!All sales final — no returns, refunds or cancellations once placed (Terms, 24 Sep 2026).
WA Consulting LLC · 30 N Gould St STE R, Sheridan, WY 82801 (registered-agent address) — About and Contact pages (24 Sep 2026)
lot NLL-1444543 (searchable via horizonanalytical.com)
Test date
8 Aug 2026
Purity
99.4%
Measured
19.82mg
Net content vs label99.1% of 20mg
0label 20mg130%
One vial measured.
Verify at the lab Transcribed by Compound Review; the laboratory's report is the record.
Where Northline Labs ranks by compound
Northline Labs 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.
2026-08-144/8 — initial public baseline (rubric v1)
2026-09-068/10 — re-issued under rubric v2 (was 4/8); not awarded: claims-consistent, identity
2026-09-188/10 — score unchanged — review-base evidence re-pointed: northlinelabs.com Trustpilot profile removed (guidelines notice), active northlinelabs.org profile 4.3 / 491 read directly 18 Sep 2026; vendor site now at northlinelabs.org
2026-09-248/10 — 8/10 → 8/10 (one up, one down) — identity awarded: 'Northline Labs is a brand of WA Consulting LLC' (/about-northline/) and a Sheridan, WY street address on /contact/ (a registered-agent suite, disclosed); clean-record withdrawn: homepage badge '4.8★ 12,000+ reviews' overstates the live Trustpilot profile (4.3 / 495). Still not awarded: claims-consistent
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.
Northline Labs: the caveat
Its original northlinelabs.com Trustpilot profile was removed by Trustpilot with a guidelines notice (read 18 Sep 2026); the vendor moved to northlinelabs.org, where an active profile shows 4.3 across 491 reviews. The lab (Horizon Analytical) appears only on the certificate PDF, never in page text; the legal entity (WA Consulting LLC) and a Sheridan, WY registered-agent address appeared on /about-northline/ and /contact/ by 24 Sep 2026; pricing is above Purgo Labs on the verified Ipamorelin comparison.
07
Where the evidence points
Where the evidence points
Purgo Labs 10/10
We earn nothing from Northline Labs. 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 8/10. Northline Labs is stronger on 3 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 Northline Labs legit?
Northline Labs scores 8/10 on our rubric, has an independently viewable rating of 4.3 (501 reviews), and names its lab (Horizon Analytical (on certificates)). Caveat: Its original northlinelabs.com Trustpilot profile was removed by Trustpilot with a guidelines notice (read 18 Sep 2026); the vendor moved to northlinelabs.org, where an active profile shows 4.3 across 491 reviews. The lab (Horizon Analytical) appears only on the certificate PDF, never in page text; the legal entity (WA Consulting LLC) and a Sheridan, WY registered-agent address appeared on /about-northline/ and /contact/ by 24 Sep 2026; pricing is above Purgo Labs on the verified Ipamorelin comparison.
Which is cheaper, Purgo Labs or Northline Labs?
On the 2 compound-and-size rows where we have dated prices from both, Northline Labs 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 Northline Labs. Scores come from the rubric, which has no partnership input, and the ordering rule on our scoreboard is disclosed.