Best PT-141 vendors
53 vendors, ranked by our independent composite grade. Same methodology as everywhere else: no vendor pays for placement. See how we score →
Crush Research
A young but unusually testing-serious domestic vendor whose real, named-ISO-17025 (ILS Laboratories), per-batch, multi-vial COA program and card-plus-crypto-plus-bank…
Peptalia
A solid, well-above-niche-norm Spanish research-peptide vendor: each product page carries CoA/MS/HPLC tabs whose MS and HPLC sheets are…
Peptidology
Solid B: named ISO-17025 independent lab, Finnrick-verified high purity, all-rail payment, and a published replacement policy outweigh the…
Protide Health
A real, non-scam US vendor whose trust case is actually backed up: I personally opened a Freedom Diagnostics…
Pulse Peptides
A legitimate, transparent EU vendor with genuine third-party per-batch Janoshik testing (BPC-157 verified at 99.6%), named Cyprus/UK entities,…
Peptidgen
A young (~6-month domain) but genuinely lab-backed Slovak vendor: real independent Janoshik per-batch COAs at 99.5-99.9% sit one…
NovaCell Peptides
A genuinely lab-backed young EU vendor: verified independent Liquilabs COAs show >99.8% purity on flagship products (TB-500, Retatrutide),…
Proforma Peptides
A transparent, genuinely third-party-tested young UK vendor: two COAs personally opened at 99% with clean 100%-area chromatograms, a…
myPEPT
A young but genuinely COA-backed NL/EU vendor: I personally opened real Janoshik third-party reports (Retatrutide #156077 at 99.557-99.720%,…
Lab Peptides France
A comparatively legitimate but very new (~5-month) France/EU vendor: I personally opened genuine independent third-party COAs from Janoshik…
Nova Life Peptides
A legitimately verifiable but young US vendor: I opened two genuine, recent, per-batch independent COAs (Freedom Diagnostics, full…
Beyond Peptides
A legit-looking EU peptide vendor set apart by real, recent, independently named-lab Janoshik COAs (BPC-157 99.574%, personally opened…
BioCatalyst
A legitimate-looking, transparent Deus Medical distributor set apart by verifiable Janoshik per-batch COAs (independently confirmed by eye, high…
Peptide Royale
A very new, tidy, pen-focused Dutch reseller whose testing is genuinely a cut above: real openable Janoshik per-SKU…
SlavicLabs
A legitimate, well-established Polish vendor (real KRS entity, physical address, ~4yr domain, valid HTTPS, no dark patterns) with…
EurexaLabs
A legitimate-looking, live-HTTPS Dutch EU storefront a notch above the anonymous norm: a real KvK entity, clear research-use-only…
Baltic BioLabs
A legitimate, non-scam EU affiliate storefront whose flagship products are genuinely and independently tested (real Liquilabs per-batch COAs,…
Peptide Force Romania
A verified-but-thin young EU vendor whose testing is genuinely a cut above its peers: openable per-SKU COAs from…
Xcel Peptides
A named US entity using a reputable independent lab (Janoshik), but an active FDA warning letter for unapproved-drug…
Bluewell Peptides
A functional, non-scam UK vendor with transparent at-market pricing, fast tracked delivery, card-plus-bank payment, and real per-batch COAs…
Peptide Research NL
Verified on the core testing axis (real independent Analiza Bialek COAs personally opened, 99% purity, vial barcodes matching…
gFITpeps
A legitimate-looking but unproven newcomer: real, independent, recent Janoshik COAs were personally opened (~99.8% purity), yet they belong…
Polaris Peptides
A legitimate, non-scam vendor whose flagship tirzepatide is genuinely excellent by independent lab data, but zero self-published COAs,…
BioLongevity Labs
A legitimate, transparently-owned US vendor with a genuinely deep COA library tied to a real CLIA lab, but…
Dr Peptides
A cheap, fast, RUO-framed young UK vendor with a named limited company and a strong on-site review widget,…
Labsy
A transparent, professionally run Polish storefront with a real registered owner, clear terms and consistent research-use labeling, but…
Peptide Lab NL
Identity and infrastructure are genuinely solid for a niche EU vendor: a real registered Dutch B.V. with KvK,…
Apex Lab Peptides
A real, non-scam, low-priced US vendor that does more than most on paper - per-batch COAs posted for…
Peptida Apotheke
A hastily launched (Feb 2026) German research-peptide storefront with genuine strengths in logistics (German-warehouse DHL Express, tracked, 1-4…
Research Peptides Lab
A plausibly legitimate, non-scam young vendor with transparent pricing and fast tracked US shipping, but no testing lab…
PureLab
A genuine, registry-verifiable Polish operation (physical address, established sister supplement brand, transparent pricing, EU-wide InPost shipping, clear research-use-only…
Clean Peptides
Live, valid-HTTPS NL storefront that is more transparent than the typical anonymous EU peptide shop (named KVK, real…
Felix Chemical Supply
Competitive pricing, decent US-only shipping and multi-rail payment are the only verifiable strengths; a 2025 domain, a fully…
PEPTEX
Caution: PEPTEX presents a polished EU storefront with above-average logistics terms (UPS tracked, 28-day returns, lost-parcel reship, card+crypto),…
Scandinavian Peptides
A real, non-scam-looking but entirely unverified ~1-year-old Norwegian pen vendor that presents better than most young EU peers…
Reptide
A real, non-scam-looking but entirely unverified young Bulgarian vendor whose trust case rests on unbacked claims: 98%+ purity…
Peptide Croatia
A live valid-HTTPS but ~4-month-old, fully anonymous Croatian storefront whose trust case rests on an unbacked 'HPLC >=98%…
Biopeptide
A plausible, non-scam-looking but wholly unverified new EU vendor: a tidy Shopify store that names a real third-party…
LifeSpanSupply
A live, valid-HTTPS ~3-month-old EU/Asia-facing store whose trust case rests on an unbacked '>=99% independent HPLC / COA…
Peptology Romania
A young, thinly-proven EU-network storefront whose Romanian brand masks a Bulgarian operation: contact page gives a Sofia BG…
Peptide Revolution
Caps at D+: 'third-party tested/verified' and '>=99% HPLC' are claim-only with zero published COAs, no lab named, and…
MOG Peptides
A clean, transparent-priced EU-facing store with a named, Companies-House-verifiable entity and fast tracked Packeta shipping - but its…
Peptide Sciences
Closed as of 6 March 2026 and not recoverable - no refunds, and any site claiming to be…
Peptology (EU)
A young, thinly-proven EU network storefront whose Italian brand masks a Bulgarian operation with no disclosed legal entity,…
Proxiva Labs
Currently suspended (client hold), so nothing on-site is verifiable right now; the objectively false since-2021 claim on a…
Best Peps
An ~8-month-old, WhatsApp-only shop that markets strong testing (>=99% HPLC, 100% third-party COA, MS identity) but publishes none…
Axium Peptides
Avoid: Axium presents another shop's real Janoshik certificates (all Client/Manufacturer = Peptide JFT / peptidejft.shop) as its own,…
R3Peptides
A brand-new, unverified France static-HTML store that claims >=98% HPLC + mass-spec testing with COA on request but…
PeptidesUK
High-risk, likely-scam record: no published or independent COAs (only on-request, no lab named), anonymous ownership behind a hidden…
Testolab HR
An unverifiable young Croatian gray-market steroid/SARM/peptide reseller: it carries the mainstream peptides (BPC-157 EUR 58-96, TB-500, CJC-1295) and…
Peptidai Lietuva
Not recommendable on current evidence: no certificate of analysis, no named lab, and no purity data of any…
PeptiLAB
A transparent-but-brand-new Czech affiliate/guide site rather than a seller: it publishes no COA, names no lab, shows no…
Peptides.net.pl
A failed/abandoned Polish grey-market vendor with a credible exit-scam pattern: multiple Trustpilot reviewers report paying and receiving nothing…