About Life Link Research
We started with the quality and built the company around it.
A majority of peptide suppliers in the US you see online grew fast and added quality later. Every batch is tested for identity (qualitative) and purity (quantitative) by third-party labs, Janoshik Analytical and US-based laboratories. Secondary testing, heavy metals, sterility, and endotoxin, runs on a rotating batch cycle, and every result is published in our online COA library before you buy. None of it was ever an upgrade we grew into, it was the starting point.
- Panel
- Third-party tested, every batch
- Purity
- 99%+ by RP-HPLC
- Testing lab
- Janoshik Analytical & US-based labs
- COA
- Published before you buy
Example layout, every batch has its own signed, published record.
identity & purity
by RP-HPLC
published COA
the daily cut-off
Standard-first, from batch one
Built around the testing, from the first batch
Every vial we have ever shipped was tested to the same standard, by an outside lab, with the certificate published before it left. Third-party testing, the independent labs, and the public COA were all in place before we shipped a single order.
The bar came first and the business followed. Every batch we have ever sent out has met the same standard, because that standard is the reason we exist.
In place before order one
- Independent third-party testing on every batch
- Independent, non-selling labs
- Public, batch-traceable COA
- Research-use-only sales policy
Why we built Life Link Research
The market grew quickly. Its quality did not keep pace.
Along the way, corners got cut in ways buyers rarely see. Purity numbers were self-reported by the same people selling the product. Safety tests that cost time and money were skipped.
Some vendors let their marketing drift toward human use, a line research material must never cross. We looked at that gap and built for the opposite of it.
The standard we run on
Treat researchers as the professionals they are, test everything through an outside lab, publish the real data, and run the whole operation as though an inspector could walk in tomorrow.
- 01 Researchers are professionals Straight data and plain documentation, not persuasion.
- 02 An outside lab decides Every result comes from a lab with nothing to sell.
- 03 The real data is published The COA goes up whatever the numbers say.
- 04 Inspection-ready, always Run daily as though someone were checking today.
Our standard
How we test every batch
We send every batch to Janoshik Analytical and independent US labs for identity and purity testing, with heavy metals, sterility, and endotoxin on a rotating cycle. Each result appears on the batch’s Certificate of Analysis.
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01
Identity
LC-MS · Every batch
Confirms the compound is the peptide on the label.
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02
Purity
RP-HPLC · Every batch
Reverse-phase HPLC, held to a standard of at least 99%.
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03
Heavy metals
ICP-MS · Rotating cycle
Screened against elemental impurity standards.
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04
Bacterial endotoxin
LAL assay · Rotating cycle
For material that meets sensitive research needs.
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05
Sterility
Direct inoculation · Rotating cycle
Confirms no viable microbial growth.
Most vendors stop at the first two. Identity and purity come in the standard certificate most suppliers order. The other three are separate assays a lab only runs when asked, they cost more and take longer. We commission identity and purity on every batch, and run the rest on a rotating cycle across our catalog, because a purity figure alone says nothing about whether endotoxin or heavy metals are riding along into your experiment.
Tested by ISO certified & third-party labs
Every batch is tested by independent labs.
Independent testing is the standard we run on. Every batch is verified by third-party labs, Janoshik Analytical and US-based laboratories, none of which sell peptides.
No one in the testing chain has any reason to flatter a result. Their methods are published, their COAs are batch-traceable, and the number you read is the number they measured.
What every batch goes through
The same path, every order. Nothing skips a step.
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1
Received
Finished peptide arrives at our US facility and is logged into inventory.
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2
Sampling
A sample of the batch goes to a third-party lab for identity and purity testing, plus rotating secondary testing.
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3
Certification
The lab issues a batch-specific Certificate of Analysis with every result.
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4
Publication
We publish that COA in our online library and link it on the product page, so you can read it before you order.
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5
Traceability
Every COA is published with its batch number, so the record for each lot is always checkable.
If a batch falls short on any test, it is quarantined. It is never downgraded, relabeled, or shipped anyway. Holding that line is the whole reason the panel is worth running.
Built to ship fast
Good documentation means little if the material sits in a queue for a week.
Warehousing across the US
Registered in Wyoming and shipped from California, so orders placed before 2 PM PST leave the same business day.
Same-day dispatch
Orders placed before our daily cut-off go out the same business day, and shipping is free on qualifying orders.
Plain, secure packaging
Everything arrives discreetly packed and protected. Full details are set out in our Shipping Policy.
Research use only
Everything we make is supplied strictly for laboratory research use only. Our products are not drugs, foods, cosmetics, or supplements. They are not FDA-approved, and they are not intended for human or veterinary use, consumption, diagnosis, treatment, or prevention.
We sell to qualified researchers working in compliant settings, and we expect all material to be handled accordingly. We treat this as a core operational standard, central to how we function, and have maintained it since our very first batch.
Questions about a batch or a COA?
Talk to the people who tested it.
Reach our team through the contact page and we will help, batch records, COA fields, or how we work.