Independent analysis

Compare 3 laboratories. Choose yours.

Having a vial re-tested by an independent laboratory is the only way to authenticate a batch. We list here the three labs that matter in the community — Janoshik, ChemRx, Colmaric — with their pricing, turnaround times and specialties, no marketing fluff.

3 laboratories
60–360 USD
5–15 days

Side by side

The honest comparison

Prague · European UnionEU Recommended
Janoshik Analytical
The European gold standard
Price
215–360 USD
USD per test · BPC-157 ≈ 215 · GLP-1 ≈ 360
Turnaround
5–10 business days
Methods
- Reversed-phase HPLC-UV
- Mass spectrometry
- Gravimetric quantification
- Endotoxins (optional)
Strengths
- Public verification key on every CoA
- The most complete reports on the market
- Intra-EU shipping: no customs
To note
- Higher pricing
- Longer queues during peak periods
Verdict: The default choice if you're in Europe. Their CoAs are the community's reference standard.
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Florida · United States
ChemRx Analytical
The best value for money
Price
129–238 USD
USD · often free on common peptides
Turnaround
7–14 business days
Methods
- HPLC
- LC-MS
- Endotoxins (optional)
- Sterility (optional)
Strengths
- Very accessible pricing
- Recurring free analyses
- Online order tracking
To note
- Customs + delays for EU→US shipping
- Reports less standardized than Janoshik
Verdict: Ideal for running multiple analyses without blowing the budget, especially if you're already in the US.
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United States
Colmaric Analyticals
The widest analytical panel
Price
60–110 USD
USD per sample depending on panel
Turnaround
10–15 business days
Methods
- HPLC
- Mass spectrometry
- Quantification
- Bioburden / endotoxins
Strengths
- Lowest entry pricing
- Microbio panel available
- Good for grouped multi-tests
To note
- Slightly longer turnaround
- Less known in the community
Verdict: For extended quality control (microbial contaminants) on the same sample.
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The procedure, step by step

Send a vial in 4 steps

Step 1
Choose the laboratory
Based on your country (Janoshik in the EU, ChemRx / Colmaric in the US), your budget and the analytical panel you want — purity only, or purity + endotoxins, etc.
Step 2
Create the analysis order
On the chosen lab's website, create a research account, select the test, pay online. You receive the shipping address and a task number to write on the package.
Step 3
Prepare and ship
Lyophilized vial in rigid packaging, with an accompanying form, tracked mail. A non-reconstituted vial travels internationally without issue.
Step 4
Receive the CoA
Within 5–15 business days, a signed Certificate of Analysis with HPLC purity, measured mass and a public verification key. The report can be cross-checked directly on the lab's portal.

RUO reminder

Verifying is science. Not a use validation.

Having a vial tested is part of quality control for research reagents. The resulting CoA does not in any way validate a veterinary, diagnostic or therapeutic use. Peptinium Labs peptides are reserved for in vitro scientific research, in a strictly professional setting.

Lab resource · free

Get your free reconstitution guide

Reconstitution methodology, concentration calculations and storage best practices — PDF sent instantly by email, for research use only (RUO).

PDF · 9 pages · free

The honest comparison

Send a vial in 4 steps

Choose the laboratory

Create the analysis order

Prepare and ship

Receive the CoA

Verifying is science. Not a use validation.

Get your free reconstitution guide