Disclosure: Purgo Labs is our affiliate partner, and so is Modern Aminos (referral link only, no code). 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
COAs and pricing viewable without an account — COAs on product pages without login
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)
No contradictions among its own claims — No contradictions found across site claims (checked Aug 2026)
Lower list price on 6 of 7 like-for-like rows.
Larger independent review base: 4.7 (101 reviews) vs none on record.
Modern Aminos
Lower list price on 1 of 7 like-for-like rows we have on record (see table).
The BPC-157 10mg certificate is a Freedom Diagnostics report for lot BX-P-W7M6 stating per-vial net content of 13.09 / 12.22 / 12.51mg against a 10mg label.
Prices verified to the cent on product pages reached by direct URL. CORRECTED 18 Sep 2026: the 6 Sep readings (BPC-157 10mg $47.60, TB-500 10mg $41.30) were a site-wide 30% promotion; list is BPC-157 5mg $38 / 10mg $68, TB-500 10mg $59 — mid-to-upper range in our index, not among the lowest.
02
The 10 criteria, side by side
10/10 vs 7/10 · one point each, no weighting
Named lab
PurgoSteriGenix and Freedom Diagnostics named per lot
SteriGenix and Freedom Diagnostics named per lot
ModernFreedom Diagnostics printed on the BPC-157 certificate (lot BX-P-W7M6)
Freedom Diagnostics printed on the BPC-157 certificate (lot BX-P-W7M6)
Lab-hosted COAs
PurgoVerify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com
Verify-at-lab links to sterigenixanalytical.com / freedomdiagnosticstesting.com
ModernCertificate prints Search Code Mode2608030046 / Accession 2608030046 for lookup at freedomdiagnosticstesting.com — read 6 Sep 2026
Certificate prints Search Code Mode2608030046 / Accession 2608030046 for lookup at freedomdiagnosticstesting.com — read 6 Sep 2026
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
ModernCertificate carries lot BX-P-W7M6
Certificate carries lot BX-P-W7M6
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)
ModernCertificate reports per-vial net content 13.09 / 12.22 / 12.51mg vs 10mg label
Certificate reports per-vial net content 13.09 / 12.22 / 12.51mg vs 10mg label
Ungated
PurgoCOAs on product pages without login
COAs on product pages without login
ModernNot awarded
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)
ModernNot awarded
Consistent claims
PurgoNo contradictions found across site claims (checked Aug 2026)
No contradictions found across site claims (checked Aug 2026)
ModernNot 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)
ModernSizes stated with prices (list 18 Sep 2026: BPC-157 5mg $38 / 10mg $68; TB-500 10mg $59; the 6 Sep figures were promo prices)
Sizes stated with prices (list 18 Sep 2026: BPC-157 5mg $38 / 10mg $68; TB-500 10mg $59; the 6 Sep figures were promo prices)
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)
ModernM.A. LLC (refund label) · 9169 W State St #1451, Garden City, ID 83714 — /contact-us/, /refund-policy/
M.A. LLC (refund label) · 9169 W State St #1451, Garden City, ID 83714 — /contact-us/, /refund-policy/
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)
ModernNo 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 Modern Aminos
Read 6 September 2026 on the vendor's own pages
Very cheap, with a real certificate behind at least one product — and a storefront that hides itself from anyone who has not registered, contrary to what its own quality page promises. With the Trustpilot profile gone there is no independent record to weigh against the low prices. If you already know the product URL you can see everything; if you do not, you are asked to sign up first.
Checks out
✓The BPC-157 10mg certificate is a Freedom Diagnostics report for lot BX-P-W7M6 stating per-vial net content of 13.09 / 12.22 / 12.51mg against a 10mg label. source
✓Prices verified to the cent on product pages reached by direct URL. CORRECTED 18 Sep 2026: the 6 Sep readings (BPC-157 10mg $47.60, TB-500 10mg $41.30) were a site-wide 30% promotion; list is BPC-157 5mg $38 / 10mg $68, TB-500 10mg $59 — mid-to-upper range in our index, not among the lowest. source
?Trustpilot profile is REMOVED ('goes against our guidelines', read 5 Sep 2026); a third-party site still says the vendor 'claims 1,500+ Trustpilot reviews'.
?The 'public batch lookup, no login required' — /coas/ and /all-coas/ redirect to a registration wall, as do the homepage and every category page. Product pages open only if you already have the URL.
?NAD+ 500mg's exact price — the page shows a $40.60–$55.30 range across two formats without attaching a price to each.
?Whether semaglutide, tirzepatide or retatrutide are sold — none is in the catalog or sitemap, though Finnrick lists six tests of this vendor's retatrutide (5 pass / 1 fail) and reviewers mention a 'GLP3-R' code.
?A phone number — none found.
!Quality Assurance page: batch lookup at /coas/ needs 'no login or account required'. Reality: /coas/ redirects to a login wall.
!The same certificate lists three per-vial values (12.22–13.09mg) and a separate single 'Net Content 12.61mg' line.
!Five laboratories named on the QA page (Kovera, Vanguard, Chromate, TrustPointe, Freedom Diagnostics); the one certificate we opened is from Freedom Diagnostics.
!Sells SARMs and Melanotan II alongside peptides.
!Similarly named competitors (Profound Aminos, Modified Aminos) — the vendor's own FAQ has a question about it.
'M.A. LLC' (refund label) · 9169 W State St #1451, Garden City, ID 83714 · cs@modernaminos.com · no phone
Modern Aminos appears in 8 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: ungated, review-base, 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.
Modern Aminos: the caveat
Site was unreachable 17–18 Sep 2026 (connection refused; back up 18 Sep). Trustpilot profile REMOVED. The homepage, catalog and the 'no login required' batch-lookup pages all redirect to a registration wall — product pages are reachable only by direct URL. No phone. Semaglutide, tirzepatide and retatrutide are absent from the catalog though independent tests of this vendor's retatrutide exist. Sells SARMs and Melanotan II.
07
Where the evidence points
Where the evidence points
Purgo Labs 10/10
Modern Aminos is an affiliate partner (referral link only, no code); we point you to our top-scored partner instead. Purgo Labs holds every rubric point — certificates checkable at the lab, measured net content per lot — and is cheaper after codes on 7 of 7 like-for-like vials.
Affiliate links, disclosed. Purgo Labs is our primary partner; Modern Aminos is a partner too, by referral link only. Partnership is not a rubric input.
Purgo Labs, on the evidence: 10/10 rubric points against 7/10. Modern Aminos 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 Modern Aminos legit?
Modern Aminos scores 7/10 on our rubric, has no independent record (its Trustpilot profile has been removed), and names its lab (Freedom Diagnostics (on certificate) · Kovera · Vanguard · Chromate · TrustPointe (claimed)). Caveat: Site was unreachable 17–18 Sep 2026 (connection refused; back up 18 Sep). Trustpilot profile REMOVED. The homepage, catalog and the 'no login required' batch-lookup pages all redirect to a registration wall — product pages are reachable only by direct URL. No phone. Semaglutide, tirzepatide and retatrutide are absent from the catalog though independent tests of this vendor's retatrutide exist. Sells SARMs and Melanotan II.
Which is cheaper, Purgo Labs or Modern Aminos?
On the 7 compound-and-size rows where we have dated prices from both, Modern Aminos lists lower on 1 and Purgo Labs on 6. 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, as we do from Modern Aminos. Scores come from the rubric, which has no partnership input, and the ordering rule on our scoreboard is disclosed.