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Anyone can claim "99% pure." Our top sellers — and most of the catalog — ship with the evidence: an independent, batch-specific Certificate of Analysis you can read before you buy and verify after it arrives.
HPLC purity ≥ 99%
Every batch is quantified by High-Performance Liquid Chromatography before it ships.
Mass-spec confirmed identity
Molecular weight verified so you receive exactly the compound on the label.
COAs on our top sellers
Most compounds — and all our top sellers — carry a batch-specific Certificate of Analysis.
Cold-stored, securely shipped
Temperature-controlled storage, then double-wrapped and boxed for safe transit. Ships within 24 hours.
Compound
GLP-3 RT
Mol. weight
4625.15 g/mol
Formula
C207H317N55O63S
Purity (HPLC)
99.4%
- Identity (MS)
- Confirmed
- Appearance
- White lyophilized powder
- Solubility
- Soluble in sterile water
From checkout to your bench
Every order moves through the same careful, repeatable process.
- 1
Order placed
Secure checkout with instant confirmation.
- 2
Quality checked
Inspected and verified before it’s packed.
- 3
Wrapped & boxed
Double bubble-wrapped, padded, and boxed.
- 4
Dispatched in 24h
Out the door within one business day.
- 5
Tracked to you
Follow it the whole way with tracking.
We don't grade our own work
Our top sellers are assayed by an accredited, independent laboratory — and those results ship with the product.
Freedom Diagnostics
Independent analytical testing
Researchers in every corner of the world
10,000+ orders shipped across the United States and to labs around the globe — each one tracked, insulated, and dispatched within a day.
From the Lab
A Top Peptide Lab Says Most Testing Is 'Completely Useless' — Here's What Actually Matters
Heavy metals, endotoxins, and sterility tests sound reassuring — but for synthetic research peptides they tell you almost nothing. Here is why purity (HPLC) and net peptide content are the only two numbers that determine quality and value.
Read article
Counterfeit Bacteriostatic Water: How the Wrong Diluent Contaminates Research Peptides
Why diluent quality matters in peptide reconstitution. Learn how counterfeit or off-spec bacteriostatic water introduces particulates, microbial contamination, and cloudiness that ruin research-grade peptide solutions.
How to Spot a Forged Peptide COA: Verifying Reports from Janoshik, Freedom Diagnostics, and Other Third-Party Labs
Forged Certificates of Analysis circulate widely in the research peptide market. Learn how to verify a real report from Janoshik Analytical, Freedom Diagnostics, and other third-party labs — step-by-step verification, common forgery patterns, and red flags.
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