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Quality & Testing

Documentation, Not Marketing Claims

Every order ships with a batch-specific Certificate of Analysis (COA) covering the analytical tests below. This page explains what we test and — just as importantly — what our documentation does not claim. Our products are research chemicals: they are not medicines, and the COA is an analytical record, not a regulatory approval.

1. Standard Testing on Every Batch

TestWhat it establishesApplied to
HPLC purityPercentage of the target peptide in the material (≥99% standard)All peptides
Mass spectrometry (ESI-MS)Identity — that the measured molecular mass matches the expected sequenceAll peptides
SDS-PAGEMolecular weight confirmation for protein products (e.g. ~22,125 Da for HGH)Recombinant proteins
UV-Vis (600 nm)Copper chelation in copper-peptide complexes such as GHK-CuCopper peptides
Appearance and fillPhysical form, colour and quantity per vialAll products

2. Batch-Specific COA

The COA supplied with your order is issued for the batch you receive — not a generic template or a sample from another lot. It identifies the peptide, batch or lot number, quantity per vial, the analytical methods used, the results obtained and the recommended storage conditions, so that the document in your records corresponds to the material in your freezer.

Additional testing is available on request — including endotoxin, residual solvents and amino-acid analysis (AAA) — and is included with bulk orders where specified. Request it at the time of inquiry so that it can be scheduled with production.

3. What Our Documentation Does Not Claim

To avoid any misunderstanding:

  • Our products are not manufactured as approved pharmaceutical products, and we do not claim GMP certification, "pharmaceutical grade", pharmacy compounding status or a drug licence for the materials we sell;
  • The COA is an analytical record of the research material — it is not a regulatory approval, and it does not authorise human or veterinary use;
  • We make no claim that any product is safe, effective or lawful for human or veterinary use, at any dose, for any condition;
  • Purity and identity results describe the material supplied. They are not a statement about biological activity, clinical performance or suitability for any particular research model.

See the Disclaimer and the Research Use Only Statement for the full intended-use position.

4. Storage and Handling (Laboratory)

  • Lyophilized peptides — store at 2–8 °C, desiccated and protected from light; typical stability 12–24 months depending on the peptide;
  • Recombinant proteins (e.g. HGH) — store lyophilized at 2–8 °C protected from light; they are agitation-sensitive, so handle gently and do not vortex;
  • Copper peptides (e.g. GHK-Cu) — photolabile; protect from direct light during storage;
  • After reconstitution (laboratory use) — aliquot and store at −20 °C, avoid repeated freeze–thaw cycles, and follow the product's COA and technical documentation.

Batch-specific storage conditions on the COA prevail. Storage, handling and disposal must be carried out by qualified personnel under your institution's safety protocols.

5. Verifying Our Documentation

We encourage buyers to verify rather than take our word for it:

  • check that the COA batch or lot number matches the vials received;
  • confirm the tested parameters cover what your protocol requires;
  • ask for the underlying chromatograms or spectra if your use case needs them;
  • request additional testing before ordering if your protocol has specific requirements.

Documentation requests are handled through our contact page or by email.

Request Documentation

For a sample COA, additional analytical data or a technical dossier for a bulk order, contact Dr. Aaron Wang at [email protected]. Related: Research Use Only · Compliance · Shipping & Delivery · Terms & Conditions.

Browse the Research Catalog

Batch-specific COA with every order, additional testing on request: