Vendor Reviews
In-depth reviews based on our Vendor Transparency Score. We break down the evidence behind each grade.
Strate Labs Review: Janoshik COAs Meet a Federal Cease and Desist
Strate Labs review with Janoshik COA analysis, ITC cease and desist breakdown, pricing, shipping, and ownership transparency. Grade B vendor scored on 5 signals.
Limitless Biotech Review: Grade B, and the Kitchen Where It Started
Limitless Biotech scores 3.0/5 in our five-signal review. Three-point COA testing but no named lab, 90+ peptides but no GLP-1s, and a 10% credit card surcharge.
PureRawz Review: Grade C, Capped by an F From the BBB
PureRawz scores 3.5/5 with a Grade C editorial cap. BBB F rating, Trustpilot 1.7/5 with 84% one-star reviews, ScamAdviser 0/100. Named labs but outdated COAs and documented fulfillment failures.
Eternal Peptides Review: Grade B With Purity Upside and Trust Gaps
Eternal Peptides scores 3.5/5 with claimed Janoshik COAs and strong BPC-157 purity, but Cash App-only payments, no returns, and a removed Trustpilot cap it at Grade B.
NuScience Peptides Review: Grade A, but Skip the CJC-1295
NuScience Peptides scores 4.5/5 with 47 independently tested samples, transparent ownership, and batch-traceable COAs. See product-level ratings and the two peptides to avoid.
Verified Peptides Review: Grade A With One Blind Spot
Verified Peptides scores 4.0/5 with Janoshik COAs, authentication codes, and published failed batches. One weakness: anonymous ownership. Full review.
Precision Peptides Review: Grade C (2.5/5)
Precision Peptide Co. scores Grade C (2.5/5). No named lab, anonymous ownership, Trustpilot removed, site offline. Full scoring breakdown and alternatives.
Penguin Peptides Review: Grade C, and the Numbers Explain Why
No named lab, no batch numbers, no independent testing. Penguin Peptides scores 2.0/5 on our methodology. Full COA, trust, and policy breakdown.
Evolve BioPep Review: Grade C, 2.0/5 Score
Evolve BioPep scores C (2.0/5). High purity on independent tests but no vendor-commissioned lab work, SRY reseller markup, and wild weight swings.
Alpha Omega Peptides Review: Grade B With a Sister Brand You Should Know About
Alpha Omega Peptides earns a B grade (3.5/5) with strong lab testing but undisclosed ties to Simple Peptides. See our full transparency score breakdown.
Peptide Sciences Review: Scoring the Biggest Vendor That No Longer Exists
Peptide Sciences shut down March 2026. We scored 123 tested samples across 10 peptides. See the testing data, pricing breakdown, and copycat domain warnings.
Peptide Crafters Review: A-Grade Lab Transparency, Anonymous Operation
We pulled the COAs, verified MZ Biolabs credentials, and decoded every policy page. Peptide Crafters earns Grade A with a 3.5/5 score. Here is what that actually means.
Ion Peptides Review: Grade A With a Few Open Questions
Ion Peptides scores 4.5/5 with batch-specific COAs, 4-method testing via Freedom Diagnostics, and prices 30-50% below average. See our full evidence-based review.
Biolongevity Labs Review: B-Grade — Best Business Transparency, COA Friction
Independent Biolongevity Labs review based on our Vendor Transparency Score. Biolongevity Labs earns a B grade with 3.5/5 — named founders, SafeCert Labs testing, dedicated policy pages, but gated COA access and no batch traceability.
Polaris Peptides Review: C-Grade — Batch Traceability, No Public COAs
Independent Polaris Peptides review based on our Vendor Transparency Score. Polaris Peptides earns a C grade with 2.5/5 — batch IDs traceable, COAs provided with orders but no public library, dedicated policy pages, no named lab or ownership.
Planet Peptide Review: C-Grade — Policy Transparency, Serious Red Flags
Independent Planet Peptide review based on our Vendor Transparency Score. Planet Peptide earns a C grade with 2.0/5 — published policies and partial ownership, but no COA library, no named lab, and documented concerns about an AI-generated founder story.
Atomik Labz Review: C-Grade — Batch Traceability, No Named Lab
Independent Atomik Labz review based on our Vendor Transparency Score. Atomik Labz earns a C grade with 2.0/5 — confirmed batch traceability, some COA documentation, but no named testing lab, policies buried in FAQ, and anonymous ownership.
Apex Peptides Review: D-Grade — No COAs, No Lab, No Returns
Independent Apex Peptides review based on our Vendor Transparency Score. Apex Peptides earns a D grade with 0.5/5 — only a Terms of Service page provides any transparency signal. No COA access, no batch traceability, no named lab, and no returns accepted.
Skye Peptides Review: A-Grade Transparency, Premium Pricing
Independent Skye Peptides review based on our Vendor Transparency Score. Skye earns an A grade with 3.0/5 — perfect core evidence signals, QR-verified COAs, three named labs, and premium pricing.
Simple Peptides Review: The Strongest Ownership Transparency in the Market
Is Simple Peptides legit? Our evidence-backed review. A-grade vendor with 4.0/5 transparency score. Named founders, public COAs, batch traceability. Full pricing and community analysis.
Nexaph Review: All Three Core Signals, But Trust Gaps Keep It at B
Is Nexaph legit? Our evidence-backed review. B-grade vendor with 3.0/5 transparency score. Public COAs via Janoshik, batch traceability, aggressive pricing. But anonymous ownership and purity concerns cap the grade.