Is GB Peptides legit?
GB Peptides review: independent lab test results, published COAs, prices and ordering terms.
GB Peptides prices
| Peptide | Cheapest listing | Price | Per mg | Price rank | |
|---|---|---|---|---|---|
| Retatrutide | Retatrutide 60mg Vial1 × 60 mg | $228.60 | $3.81 | #119 of 198 | Buy |
| GHK-Cu | GHK-Cu 100mg1 × 100 mg · out of stock | $50.80 | $0.508 | #129 of 199 | Buy |
| MOTS-c | MOTS-c 40mg1 × 40 mg | $76.20 | $1.91 | #91 of 188 | Buy |
| NAD+ | NAD+1 × 500 mg | $63.50 | $0.127 | #144 of 189 | Buy |
| Tesamorelin | Tesamorelin1 × 10 mg | $63.50 | $6.35 | #127 of 184 | Buy |
| Cagrilintide | Cagrilintide1 × 10 mg | $82.55 | $8.26 | #105 of 152 | Buy |
| KLOW | KLOW Stack1 × 80 mg | $82.55 | $1.03 | #97 of 167 | Buy |
| PT-141 | PT-1411 × 10 mg | $50.80 | $5.08 | #138 of 158 | Buy |
| Melanotan I | Melanotan 1 & 2 (MT1&2) — Melanotan I1 × 10 mg | $31.75 | $3.18 | #71 of 109 | Buy |
Price rank compares GB Peptides's cheapest vial of each peptide with every other vendor's cheapest. Prices are read from GB Peptides's website and may have changed.
GB Peptides across independent sources
Every source we have for GB Peptides, side by side. Tests of vials bought like a customer would weigh more than reports the vendor picked to publish. How the sources compare across all vendors. Had a GB Peptides vial tested? Send us the report.
| Source | What it found | |
|---|---|---|
| FinnrickBuys vials anonymously and tests them | 1 tests, passed 100% (95% range 21–100%) | Finnrick page |
| Measured in bought vialsFinnrick and other tests of vials bought like a customer would | Dose 104% (middle half 104–104%, 1 reports); within ±10% of label 100% (95% range 21–100%); purity median 99.83% |
GB Peptides independent lab test results (Finnrick)
Finnrick buys vials anonymously and tests them for purity and dose. GB Peptides scores 79% and ranks #121, with 1 of 1 tests passed; latest test 17 Dec 2025. Full record on Finnrick.
| Date | Peptide | Result |
|---|---|---|
| 17 Dec 2025 | Tirzepatide | Pass |
GB Peptides COA and lab reports
GB Peptides doesn't publish lab reports (COAs) publicly.
Ordering
- Website
- gb-peptides.co.uk
- Location
- China
- How to order
- Online checkout
- Payment
- cash on delivery (only gateway shown at checkout)
- Ships from
- UK
FAQ
Is GB Peptides legit?
GB Peptides has a Finnrick score of 79% (#121), with 1 of 1 independent lab tests passed. It does not publish COAs, so independent testing is the main evidence.
Does GB Peptides publish COAs or lab test results?
It doesn't publish COAs publicly.
Has GB Peptides been independently lab tested?
Finnrick has tested GB Peptides 1 time, with 1 of 1 passed.
How do you order from GB Peptides?
Online checkout.