Blog

One letter grade never fit a market this personal. Finnrick replaces it with percentages, real prices, and vendor reports. This is peptides testing, your way.

Sermorelin vs Ipamorelin vs Tesamorelin: What the Data Says About Quality Variance

A COA is one data point. Finnrick test results across hundreds of samples show how purity and quantity can vary, and what to check before trusting a label claim.

Independent Peptide Testing: How Finnrick Verifies Purity, Potency, and Real‑World Quality

Finnrick focuses on independent peptide testing, a system designed to minimize conflicts of interest, increase comparability, and catch errors that can slip through self-administered workflows.

We’d Rather Buy the Future Than Wait For It

For a year, the American public has been asking Finnrick to test their peptides, building the largest real-world dataset of peptide demand ever assembled.

Policy update: free tests now require a batch ID

Free peptide test submissions now require a batch ID with photo evidence. Without batch IDs, published results can't be tied to a specific production run. Samples without batch IDs can still be tested through the private option or any paid add-on.

How to read a Certificate of Analysis (COA)

Certificates of Analysis report lab testing results for peptide samples. Understanding how to read them helps you evaluate whether vendor claims are supported by data.

What We Believe In

We didn’t start Finnrick because we have an opinion about whether you should take peptides. We started Finnrick because people already are, and reliable, independent information about what’s actually in the vial has been too hard to get.

Why Endotoxin Testing Matters for Peptides

What independent testing reveals about bacterial contamination in gray-market peptide supply chains