Disclosure: Purgo Labs is our affiliate partner; we earn nothing from Direct 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
Independent review base (50+ on an external platform) — 4.7 / 101 on Trustpilot, claimed; three reviews below four stars, all replied to (complaint read 9 Oct 2026; was 4.7 / 99 on 2 Oct)
Publishes a legal entity and street address — PurgoLabs LLC (Arizona) · 10105 E Via Linda St Bld 103, Scottsdale, AZ — on-site (6 Sep 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)
Lower list price on 1 of 1 like-for-like rows.
Larger independent review base: 4.7 (101 reviews) vs none on record.
Direct Peptides
Horizon Analytical certificate for BPC-157 10mg, lot DPS-1676478, report 1027437, analysis 13 Aug 2026: measured quantity 10.06mg on a 10mg label and purity 99.41% by UPLC/MS, chemist named (PhD).
Catalog, prices and certificate PDFs viewable without an account; sized pricing (TB-500 10mg $99, 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
DirectHorizon Analytical printed on the BPC-157 10mg certificate (report 1027437), chemist named — read 19 Sep 2026
Horizon Analytical printed on the BPC-157 10mg certificate (report 1027437), chemist 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
DirectNot 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
DirectLot DPS-1676478 on the certificate, analysis 13 Aug 2026; certificate filename carries the lot
Lot DPS-1676478 on the certificate, analysis 13 Aug 2026; certificate filename carries the lot
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)
DirectMeasured quantity 10.06mg on a 10mg label, purity 99.41% by UPLC/MS
Measured quantity 10.06mg on a 10mg label, purity 99.41% by UPLC/MS
Ungated
PurgoCOAs on product pages without login
COAs on product pages without login
DirectCatalog, 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 / 101 on Trustpilot, claimed; three reviews below four stars, all replied to (complaint read 9 Oct 2026; was 4.7 / 99 on 2 Oct)
4.7 / 101 on Trustpilot, claimed; three reviews below four stars, all replied to (complaint read 9 Oct 2026; was 4.7 / 99 on 2 Oct)
DirectNot awarded
Consistent claims
PurgoNo contradictions found across site claims (checked Aug 2026)
No contradictions found across site claims (checked Aug 2026)
Direct'US-made, third-party batch tested' matches the certificate; no on-site rating claim found (read 19 September 2026)
'US-made, third-party batch tested' matches the certificate; 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 Direct Peptides
Read 19 September 2026 on the vendor's own pages
The certificate reads well — a named chemist, a lot, a measured 10.06mg — but the lab behind it is a year-old site whose verification page does nothing, and the company behind the vendor is a mailbox number with no entity name and no review record. Until the lab lookup works, treat the document as vendor-hosted.
Checks out
✓Horizon Analytical certificate for BPC-157 10mg, lot DPS-1676478, report 1027437, analysis 13 Aug 2026: measured quantity 10.06mg on a 10mg label and purity 99.41% by UPLC/MS, chemist named (PhD). source
✓Catalog, prices and certificate PDFs viewable without an account; sized pricing (TB-500 10mg $99, read 18 Sep 2026). source
✓Street address on the contact page: 700 Smith St #61070, Houston, TX 77002. source
Could not verify · flags
?The certificate on the lab's site — it says 'searchable via horizonanalytical.com', but the Verify COA form there sent no network request when we submitted report 1027437 on 19 Sep 2026; nothing was returned.
?The lab itself — horizonanalytical.com was registered 21 Oct 2025, prints no address or phone, and its verify form's example lot number uses this vendor's 'DPS-' prefix. We found no shared registrar or nameservers between vendor and lab, so we are not calling it captive; we are saying lab-side verification does not work today.
?Any independent review record — the Trustpilot profile has been removed (19 Sep 2026).
?A legal entity name — none printed; '#61070' is a numbered mailbox suite.
!GLP products sold as 'GLP-1 SM', 'GLP-2 TZ' and 'GLP-3 RT' without the compound stated on the listing; excluded from our price index.
!Trustpilot profile removed for guideline violations (read 19 Sep 2026).
!Lab verification advertised on the certificate is non-functional as of 19 Sep 2026.
No legal entity name found · 700 Smith St #61070, Houston, TX 77002 — contact page (19 Sep 2026).
Direct Peptides appears in 1 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 (lab verify form non-functional), review-base (Trustpilot removed), identity, clean-record
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.
Direct Peptides: the caveat
The certificate says 'searchable via horizonanalytical.com', but the lab's Verify COA form did nothing when we submitted the report number on 19 Sep 2026 — no request was sent — and the form's own example lot number uses this vendor's 'DPS-' prefix. The lab's domain was registered in October 2025 and its site prints no address. We found no shared infrastructure between vendor and lab, so we are not calling it captive, but the lab-side verification does not work today. Trustpilot profile REMOVED. No legal entity name printed; the address is a numbered mailbox suite. GLP products are sold as 'GLP-1 SM', 'GLP-2 TZ' and 'GLP-3 RT' without the compound stated, so they are excluded from our price index.
07
Where the evidence points
Where the evidence points
Purgo Labs 10/10
We earn nothing from Direct Peptides. Purgo Labs holds every rubric point — certificates checkable at the lab, measured net content per lot — and is cheaper after codes on 1 of 1 like-for-like vials.
Purgo Labs, on the evidence: 10/10 rubric points against 6/10. Direct 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 Direct Peptides legit?
Direct Peptides scores 6/10 on our rubric, has no independent record (its Trustpilot profile has been removed), and names its lab (Horizon Analytical). Caveat: The certificate says 'searchable via horizonanalytical.com', but the lab's Verify COA form did nothing when we submitted the report number on 19 Sep 2026 — no request was sent — and the form's own example lot number uses this vendor's 'DPS-' prefix. The lab's domain was registered in October 2025 and its site prints no address. We found no shared infrastructure between vendor and lab, so we are not calling it captive, but the lab-side verification does not work today. Trustpilot profile REMOVED. No legal entity name printed; the address is a numbered mailbox suite. GLP products are sold as 'GLP-1 SM', 'GLP-2 TZ' and 'GLP-3 RT' without the compound stated, so they are excluded from our price index.
Which is cheaper, Purgo Labs or Direct Peptides?
On the 1 compound-and-size rows where we have dated prices from both, Direct Peptides lists lower on 0 and Purgo Labs on 1. 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 Direct Peptides. Scores come from the rubric, which has no partnership input, and the ordering rule on our scoreboard is disclosed.