Essentialpeptides's 'COA' is the raw-material factory's own QC sheet, the giveaway is the line 'complies with the manufacturer's standard' and a factory lot code. The seller has slapped its logo on the maker's self-assessment. That's the supplier grading itself, twice removed from anything independent, and presented to you as third-party proof. Aggravating: pushes GLP-1 'pens'/weight-loss framing.
Quoted straight from essentialpeptides.co.uk, and why it falls apart.
The Peptide Watch benchmarks every vendor on the same compound, BPC-157, the most common research peptide, as £ per milligram, so prices are directly comparable across all providers. No public BPC-157 price feed was available for this vendor at audit.
| Check | Result |
|---|---|
| Verifiable certificate in its own name | No |
| Independent lab named | None named / unverifiable |
| Tests its own stock | No evidence |
| Claims that don't add up | 1 found |