Research Resources

Biotech Peptides is committed to supporting the scientific research community with high-purity peptides and accurate educational resources. This page is intended for researchers, academics, and licensed professionals. All products are sold strictly for research use only and are not intended for human consumption.

What Are Peptides?

Peptides are short chains of amino acids linked by peptide bonds. They serve as the building blocks of proteins and play critical roles in biological signaling, cellular regulation, and metabolic function. Synthetic peptides are widely used in research settings to study receptor interactions, tissue repair mechanisms, hormonal pathways, and more.

Peptide Storage & Handling

Proper storage is essential to maintaining peptide integrity and purity:

  • Lyophilized (powder) form: Store at -20°C, away from light and moisture. Stable for 12–24 months when stored correctly.
  • Reconstituted solution: Store at 4°C and use within 4–6 weeks. For longer storage, freeze in single-use aliquots at -80°C.
  • Reconstitution: Use bacteriostatic water or sterile saline. Add solvent slowly along the side of the vial and gently swirl — do not shake.

Understanding Certificates of Analysis (COAs)

A Certificate of Analysis (COA) is a document issued by an independent third-party laboratory confirming the identity, purity, and quality of a peptide batch. When reviewing a COA, look for:

  • Purity %: Research-grade peptides should be ≥98% pure as measured by HPLC
  • Molecular weight: Should match the theoretical MW of the peptide
  • Mass spectrometry confirmation: Verifies the correct amino acid sequence
  • Batch/lot number: Allows traceability to a specific production run

View our independent lab certifications →

Glossary of Key Terms

  • HPLC — High-Performance Liquid Chromatography: the gold standard method for measuring peptide purity
  • Lyophilized — Freeze-dried; a preservation method that extends shelf life
  • Reconstitution — The process of dissolving a lyophilized peptide in a solvent for use
  • Bacteriostatic water — Sterile water containing 0.9% benzyl alcohol, used to reconstitute peptides for extended storage
  • Amino acid sequence — The specific order of amino acids that defines a peptide's structure and function
  • Half-life — The time it takes for half of a peptide to degrade in a given environment

Research References

The following PubMed-indexed studies are provided for informational purposes to support legitimate scientific research:

Frequently Asked Questions

Are your peptides suitable for human use?
No. All products sold by Biotech Peptides are strictly for in vitro and laboratory research use only. They are not approved for human or veterinary use.

What purity level are your peptides?
All our peptides are ≥98% pure as verified by independent third-party HPLC testing. COAs are available on our certifications page.

Do you ship internationally?
Yes, we ship to 29 countries. Please ensure compliance with your local regulations regarding the import of research chemicals.

How should I store peptides upon receipt?
Store lyophilized peptides at -20°C immediately upon receipt. Keep away from light, heat, and moisture.