One honest score.
Built from signals that cannot be bought.
Gray-market peptide vendors rotate numbers, recycle names, and buy their own reviews. The Trust Index cuts through it by combining three things nobody can fake at once.
Verified lab results
Janoshik verification keys make a forged COA worthless. Stale results decay out of the score.
Usage-weighted reviews
Every review is intelligently scored by the reviewer's real activity. Active users shape the score; empty accounts barely touch it.
Vendor identity graph
Vendors swap numbers, handles, and store names to ditch a bad reputation. We use AI to link them.
The Shades of Grey Vendor Trust Index tracks 18 peptide vendors and scores each one from 0 to 10 using only verified laboratory tests and usage-weighted reviews. As of July 2026 the index holds 0 verified lab tests and 0 weighted reviews across 17 tracked contact fingerprints. How the Trust Index score works.
Is this my seller?
Paste any contact you have for the seller: phone, handle, website, email, a crypto wallet, even the rep's name.
WE USE AI TO LINK VENDOR INFORMATION
Newer California LLC RC vendor (founded May 2024, verified entity); third-party HPLC/MS COAs on product pages; CC + crypto.
US-only RC vendor (founded ~July 2024) with 'triple third-party lab verification' and coded GLP-1 blend names; highest single-vendor ranking across 2026 comparison sites.
SARMs-primary RC vendor with BPC-157; GLP-1 availability unconfirmed on current site; crypto-first checkout; Colmaric Analyticals named as lab.
Newer US RC vendor (founded 2023, Orlando FL); Trustpilot 93% five-star (279 reviews); 100+ peptides; same-day dispatch; one fulfillment-failure flag January 2026.
Fast-rising US RC vendor post-Peptide-Sciences shutdown (active early 2025); QR-code COAs on every vial; semaglutide $34.99/5mg (lowest confirmed).
Established US RC vendor (~2010, 15+ years); semaglutide $159.99/5mg; no tirz or reta; volume discounts to $119.99/unit.
Family-owned US RC vendor; Trustpilot 5.0 (93+ reviews) - highest satisfaction in research; cheapest confirmed retatrutide ($62.99/10mg); same-day FedEx.
Long-running US RC vendor (90+ compound catalog) with multiple formats (injectable, capsule, nasal spray); mixed reputation and alleged review manipulation.
Florida-based RC vendor (founded 2024) with small catalog and undisclosed 'EU labs' source; very low community footprint.
US RC vendor with Trustpilot 5.0 (1,563 reviews - anomalously high); same-day shipping; limited payment via gift-certificate workaround.
RC peptide vendor with minimal reconstitution accessories (gray-route); BAC water 3 mL/10 mL only.
Newer US RC vendor; Finnrick A-rated on tirz and reta; COAs physically printed on vials; Trustpilot 4.8 perfect record; second most recommended in r/Peptides.
EU-based (Slovakia) RC vendor since 2015; ships internationally including US; limited US footprint; GLP-1 availability for US buyers unconfirmed.
Boutique US RC vendor; Finnrick A-rated across 59 samples in 7 products (deepest depth in peer group); most frequently recommended in r/Peptides; Janoshik-verified COAs.
US RC vendor with 97 Finnrick samples; A-grade tirz (8.8 avg), C-grade sema (6.9 avg), D-grade reta; hidden ownership; COAs on request only.
High-catalog US RC vendor (69+ peptides) with known COA batch-mismatch issue and slow shipping; PissedConsumer 2.9/5.
Established US RC/SARM vendor with strong non-GLP-1 peptide catalog; does NOT sell sema/tirz/reta as of April 2026.
Iceland-registered RC vendor; received FDA warning letter Dec 2024 for GLP-1 products; partially compliant (removed tirz/reta, retained sema).
Flag it via Report an issue and it goes into review. Your contact info for the seller is never shown publicly.
Know a seller that is not in the index? Contributions are closed while we're getting set up. In the meantime you can flag a missing vendor via Report an issue — it goes into human review, and any contact detail you include is never shown publicly.
What a verified test proves (and what it does not)
A verified lab result proves that one specific vial, shipped by one contributor, contained what the report says at the time of testing. It does not prove the vendor's whole batch, future batches, or ongoing supply match that result. Treat every score as evidence, not a guarantee.
Shades of Grey aggregates information only. Nothing here is an endorsement, and no product is ever sold, shipped, or held by Shades of Grey. Research peptides are not approved for human use.