Do I get a COA with every order?

Yes. At AllMyPeptides, every order includes a batch-matched Certificate of Analysis. The COA is specific to the batch of peptide you received, not a generic document.

What does 99%+ HPLC purity mean?

It means that 99% or more of the material in the vial is the target peptide, as measured by HPLC analysis. The remaining 1% may include trace impurities from the synthesis process, which is normal and expected.

Can I trust a COA from the supplier themselves?

Ideally, the COA should come from an independent third-party laboratory, not the supplier own lab. AllMyPeptides uses independent UK laboratories for all testing to ensure objectivity.

What is mass spectrometry and why does it matter?

Mass spectrometry measures the molecular weight of the peptide, confirming that the molecule in the vial is what the label says it is. It is an essential identity test.

How do I read the HPLC chromatogram on my COA?

Look for a single, sharp main peak that represents your target peptide. The purity percentage is the area of this peak divided by the total area of all peaks. 99%+ is the gold standard.

Best Lab Tools for Research Peptides

Equipping a Peptide Research Setup

Working with research peptides requires more than the peptide itself. A small set of standard laboratory tools makes reconstitution, measurement, and storage accurate and repeatable. None of these tools are exotic — most are inexpensive and widely available — but using the right ones protects both the integrity of the peptide and the accuracy of the research. This guide covers the essentials and what each is for.

Bacteriostatic Water

The most essential companion to any lyophilised peptide is bacteriostatic water. It is used to reconstitute the freeze-dried powder into a usable solution. Unlike sterile water, it contains benzyl alcohol, which inhibits bacterial growth and allows the reconstituted solution to be stored for several weeks. It is the standard diluent for research peptides and is required before most peptides can be measured or used.

Syringes for Measurement

Accurate measurement depends on appropriate syringes. Insulin-style syringes, marked in units across a 1ml barrel, are widely used because they allow small volumes to be measured precisely against a known concentration. A separate, larger syringe is often used for drawing and adding bacteriostatic water during reconstitution. Precise, finely graduated syringes are what make repeatable measurement possible.

Storage Equipment

Proper storage requires a reliable refrigerator capable of holding 2–8°C, and for long-term storage of lyophilised powder, a freezer at -20°C. Opaque or amber containers protect light-sensitive peptides, and a simple labelling system — recording the reconstitution date and concentration on each vial — prevents confusion and supports accurate calculation later. Consistent temperature is more important than any single piece of equipment.

Labelling and Record-Keeping

An often-overlooked essential is a system for recording what has been prepared. Noting the peptide, the volume of water added, the resulting concentration, and the date of reconstitution on each vial ensures that every measurement can be calculated accurately and that solutions are used within their shelf life. Good record-keeping is a tool in its own right, and it is free.

Optional Precision Tools

For research demanding higher precision, additional tools such as alcohol swabs for cleaning vial stoppers, and a dedicated sharps container for safe disposal, round out a complete setup. These are inexpensive additions that improve hygiene and safety. Together with bacteriostatic water, appropriate syringes, and reliable cold storage, they form the core toolkit for working with research peptides.

Frequently Asked Questions

What tools do I need to work with research peptides?

The essentials are bacteriostatic water for reconstitution, insulin-style syringes for accurate measurement, reliable refrigerated and frozen storage, and a labelling system to record concentration and date. These cover reconstitution, measurement, and storage.

Why are insulin syringes used for peptides?

Insulin-style syringes are marked in units across a 1ml barrel, allowing small volumes to be measured precisely against a known concentration. This precision is what makes repeatable measurement possible.

What water is used to mix research peptides?

Bacteriostatic water is the standard diluent. It contains benzyl alcohol to inhibit bacterial growth, allowing the reconstituted solution to be stored for several weeks — unlike sterile water, which offers no such protection.

How should I store prepared peptide solutions?

Refrigerate reconstituted solutions at 2–8°C, keep them upright and away from light, and use them within a few weeks. Lyophilised powder can be kept longer, and is best frozen at -20°C for long-term storage.

Products discussed in this guide are for research and laboratory use only. AllMyPeptides does not condone or support misuse of any research materials. Not for human or animal consumption.

Best Lab Tools for Research Peptides: Storage, Mixing, and Measurement Essentials