Purgo Labs vs SKO Compounds
Verdict: Purgo Labs, on the evidence: 10/10 rubric points against 4/10. SKO Compounds is stronger on 3 points listed below.
- Purgo
- ahead on the rubric
- 0/0
- vials Purgo cheaper at list
- 0/0
- vials Purgo cheaper after codes
- 3
- points SKO Compounds is stronger on
Disclosure: Purgo Labs is our affiliate partner, and so is SKO Compounds. 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.
Where each vendor is stronger
Purgo Labs
- Names its testing laboratory — SteriGenix and Freedom Diagnostics named per lot
- Certificates verifiable at the lab, not just the vendor — Verify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com
- Batch-specific COAs matched to lots — Lot numbers (e.g. PL-BPC-05) with test dates per batch
- 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)
- 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)
SKO Compounds
- Larger independent review base: 4.8 (614 reviews) vs Purgo's 4.8 (101 reviews).
- Re-checked 10 October 2026: Trustpilot 4.8 across 614 reviews, 95% five-star / 4% one-star (was 4.8 across 612 on 2026-10-09). Prices: last read 23 September 2026 by the weekly capture.
- 4.8 across 535 Trustpilot reviews on a claimed profile; most recent review 15 Sep 2026 (read 24 Sep 2026).
The 10 criteria, side by side
SteriGenix and Freedom Diagnostics named per lot
Verify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com
Lot numbers (e.g. PL-BPC-05) with test dates per batch
Measured net peptide published per lot (e.g. BPC-157 lot PL-BPC-05: 11.16mg vs 10mg label)
COAs on product pages without login
Catalog and sized pricing viewable without an account (age-gate only)
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)
4.8 / 565 on Trustpilot (re-read 2 Oct 2026; was 4.8 / 535 on Trustpilot)
No contradictions found across site claims (checked Aug 2026)
Product pages state vial size with price (e.g. BPC-157 10mg at $44.99; 24 dated size+price readings on record)
Every product lists sizes with list and sale prices (e.g. Ipamorelin 10mg, NAD+ 500mg)
PurgoLabs LLC (Arizona) · 10105 E Via Linda St Bld 103, Scottsdale, AZ — on-site (6 Sep 2026)
SKO Compounds LLC (refund policy) · 8605 Santa Monica Blvd #383491, West Hollywood, CA 90069 on /contact — a mailbox suite number, disclosed as such (read 24 Sep 2026)
No on-site review badge contradicting the independent record; card payment accepted; no regulator action found (checked 6 Sep 2026)
Like-for-like prices
No compound-and-size pair with dated prices from both vendors yet. Each vendor's readings are on the price index.
What we found at SKO Compounds
A large, active review base and, as of this read, a company name — but not one certificate we could open, and no lab named. The score is low because the documentation is, not because of the reviews. Affiliate partner; disclosed, not scored.
Trustpilot 4.8 across 614 reviews, 95% five-star / 4% one-star (was 4.8 across 612 on 2026-10-09). Prices: last read 23 September 2026 by the weekly capture.
most recent review 15 Sep 2026 (read 24 Sep 2026).
'SKO Compounds LLC' in the refund policy; mailbox address 8605 Santa Monica Blvd #383491, West Hollywood, CA 90069 on the Contact page (24 Sep 2026).
(age gate only).
the homepage has cited a Trustpilot count below the live figure (6 Sep 2026).
(24 Sep 2026).
/coas redirects to the welcome gate, and the '>99% purity with publicly available COAs' claim could not be matched to a single certificate page (24 Sep 2026).
not an operating location.
recorded as not checked, not as clean.
Certificates we opened at SKO Compounds
Score history and the caveats
- 6 Aug 20263/8 — first assessment under rubric v1
- 6 Sep 20263/10 — re-issued under rubric v2 (was 3/8); not awarded: named-lab, lab-hosted, per-lot, net-content, claims-consistent, identity, clean-record
- 24 Sep 20264/10 — 3/10 → 4/10 — identity awarded: 'SKO Compounds LLC' now named in the refund policy alongside the West Hollywood mailbox address (disclosed as a mailbox)
Smaller independent review base than several competitors (101 reviews). The catalog is peptide-focused, so researchers also working with SARMs or broader research chemicals will need a second supplier.
The testing laboratory is not named anywhere we could find, so testing claims cannot be looked up. Pre-order 'Research Sprays' displayed star ratings and review counts before their stated ship date — reviews cannot precede shipment, and on-site review counts are self-hosted and unverifiable. Roughly 15 of ~34 vial products were sold out on the day checked.
Where to order
Certificates checkable at the lab, measured net content per lot, the deepest GLP-1 catalog we track.
Larger independent review base: 4.8 (614 reviews) vs Purgo's 4.8 (101 reviews).
Affiliate links, disclosed. Purgo Labs is our primary partner; SKO Compounds is a partner too. Partnership is not a rubric input.
Vendors to read next to this one
Best companies · All vendors →
Questions readers ask
Is Purgo Labs better than SKO Compounds?
Purgo Labs, on the evidence: 10/10 rubric points against 4/10. SKO Compounds 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 SKO Compounds legit?
SKO Compounds scores 4/10 on our rubric, has an independently viewable rating of 4.8 (614 reviews), and does not name its testing laboratory. Caveat: The testing laboratory is not named anywhere we could find, so testing claims cannot be looked up. Pre-order 'Research Sprays' displayed star ratings and review counts before their stated ship date — reviews cannot precede shipment, and on-site review counts are self-hosted and unverifiable. Roughly 15 of ~34 vial products were sold out on the day checked.
Which is cheaper, Purgo Labs or SKO Compounds?
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, as we do from SKO Compounds. Scores come from the rubric, which has no partnership input, and the ordering rule on our scoreboard is disclosed.
What is the pre-order review issue at SKO?
On the day we checked, SKO listed five pre-order spray products with a stated ship date of 22 August 2026 - each already displaying a star rating and review count, such as 4.9 from 186 reviews. Reviews cannot precede shipment. We offer no theory about the numbers' origin; the observation was checkable on their homepage, and its practical meaning is that SKO's self-hosted ratings should not inform a buying decision. Its independently hosted Trustpilot record is a separate matter and remains genuine.