Disclosure: Purgo Labs is our affiliate partner; we earn nothing from Particle 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 / 99 on Trustpilot (re-read 2 Oct 2026; was 4.7 / 95 on Trustpilot)
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)
Larger independent review base: 4.7 (99 reviews) vs none on record.
Particle Peptides
Names Liquilabs s.r.o.; the COA Vault lists 91 batches without login, and the sampled BPC-157 5mg report (batch 2026346) states 6.38mg measured.
Full company registration published: PARTICLE s.r.o., business ID 47858541, VAT SK2024128172, Lučenec, Slovakia, with phone.
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
ParticleLiquilabs s.r.o. printed on certificates
Liquilabs s.r.o. printed on certificates
Lab-hosted COAs
PurgoVerify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com
Verify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com
ParticleNot 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
No compound-and-size pair with dated prices from both vendors yet. Each vendor's readings are on the price index.
04
What we found at Particle Peptides
Read 6 September 2026 on the vendor's own pages
A properly registered European company with a public certificate vault and measured-mass reports, carrying a removed Trustpilot profile, a self-hosted badge that looks like one, and an open question about whether its laboratory is independent. The company's own answer to that question — that ±5–10% deviations are common — is worth reading before you trust the vault.
Checks out
✓Names Liquilabs s.r.o.; the COA Vault lists 91 batches without login, and the sampled BPC-157 5mg report (batch 2026346) states 6.38mg measured. source
✓Full company registration published: PARTICLE s.r.o., business ID 47858541, VAT SK2024128172, Lučenec, Slovakia, with phone. source
✓Prices verified to the cent: BPC-157 5mg (with mannitol) €31.99, TB-500 10mg (with mannitol) €79.99, 'GLP-3' 10mg €149.99. source
Could not verify · flags
?Trustpilot profile is REMOVED ('goes against our guidelines', read 5 Sep 2026); several third-party sites still quote a '4.9 from 308' figure.
?Lab-side verification — the certificate says 'Verify Results Online' but no working Liquilabs lookup was found.
?Whether Liquilabs is independent — a Reddit allegation (shell company, duplicated equipment serial numbers, underdosing) exists only as described in the vendor's own rebuttal; we did not open the thread.
?Semaglutide, tirzepatide or NAD+ — none found in the catalog.
!The homepage shows a self-hosted '4.9/5 out of 529 reviews' badge styled like a third-party trust widget while the Trustpilot profile is removed.
!The vendor's rebuttal to underdosing allegations states, verbatim, 'Minor deviations (±5–10%) are common' — while the site markets exact-mass vials.
!Public dispute over the independence of its testing lab; the vendor disputes the 'shell company' framing but concedes measured deviations.
!Site banner warns of fake TikTok/Instagram accounts and cloned sites impersonating Particle.
!Out-of-stock GLP-3 page still shows a star rating.
!GH-secretagogue and Melanotan products in the catalog.
One vial measured — over-fill beyond 115% is flagged, not rewarded.
Over label (>115%)No lab-side verification
No lab-side lookup for this reportTranscribed by Compound Review; the laboratory's report is the record.
5mg product with mannitol.
06
Score history and the caveats
A score only moves when the evidence does
2026-09-065/8 — first assessment under rubric v1
2026-09-066/10 — re-issued under rubric v2 (was 5/8); not awarded: lab-hosted, review-base, claims-consistent, 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.
Particle Peptides: the caveat
Trustpilot profile REMOVED, while the homepage shows a self-hosted '4.9/5 from 529 reviews' badge styled like a trust widget. A public dispute over whether its lab, Liquilabs, is independent — the vendor's own rebuttal concedes 'minor deviations (±5–10%) are common'. Prices in EUR, not comparable in our USD index. Retatrutide sold as 'GLP-3' (CAS printed). No semaglutide, tirzepatide or NAD+.
07
Where the evidence points
Where the evidence points
Purgo Labs 10/10
We earn nothing from Particle Peptides. Purgo Labs holds every rubric point — certificates checkable at the lab, measured net content per lot — with a live, independent review record.
Purgo Labs, on the evidence: 10/10 rubric points against 6/10. Particle 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 Particle Peptides legit?
Particle Peptides scores 6/10 on our rubric, has no independent record (its Trustpilot profile has been removed), and names its lab (Liquilabs s.r.o.). Caveat: Trustpilot profile REMOVED, while the homepage shows a self-hosted '4.9/5 from 529 reviews' badge styled like a trust widget. A public dispute over whether its lab, Liquilabs, is independent — the vendor's own rebuttal concedes 'minor deviations (±5–10%) are common'. Prices in EUR, not comparable in our USD index. Retatrutide sold as 'GLP-3' (CAS printed). No semaglutide, tirzepatide or NAD+.
Which is cheaper, Purgo Labs or Particle Peptides?
We do not yet have a like-for-like price pair for these two vendors; the Peptide Price Index has each vendor's dated readings.
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 Particle Peptides. Scores come from the rubric, which has no partnership input, and the ordering rule on our scoreboard is disclosed.