Educational Resources
Peptide Information
Comprehensive guides on peptide science, handling protocols, and research applications for scientists and researchers.
Peptide Fundamentals
What Are Peptides?
Peptides are short chains of amino acids, typically consisting of 2-50 amino acids linked by peptide bonds. They are smaller than proteins and serve as signaling molecules in the body, influencing various biological processes including hormone regulation, immune function, and tissue repair. Research peptides are synthesized for scientific study of these biological mechanisms.
How Are Peptides Different From Proteins?
While both peptides and proteins are made of amino acids, they differ primarily in size. Peptides contain 2-50 amino acids, while proteins contain 50 or more. This size difference affects their function—peptides typically act as signaling molecules, while proteins often serve structural or enzymatic roles. Peptides are also generally more easily absorbed and synthesized in laboratory settings.
What Is Peptide Purity?
Peptide purity refers to the percentage of the target peptide in a sample, measured using HPLC (High-Performance Liquid Chromatography). Research-grade peptides typically have 98%+ purity. Higher purity ensures more accurate and reproducible research results. At Orion Peptides, all products undergo third-party testing to verify 99%+ purity.
How Are Research Peptides Synthesized?
Research peptides are typically synthesized using Solid-Phase Peptide Synthesis (SPPS), a method developed by Bruce Merrifield. This process involves attaching amino acids one at a time to a solid resin support, building the peptide chain from the C-terminus to the N-terminus. After synthesis, peptides are cleaved from the resin, purified using HPLC, and lyophilized (freeze-dried) for storage.
Handling & Storage Guidelines
Temperature Control
Store lyophilized peptides at -20°C or below. Reconstituted peptides should be stored at 2-8°C and used within 2-4 weeks.
Reconstitution
Use bacteriostatic water or sterile water for reconstitution. Add water slowly along the vial wall—never shake vigorously as this can denature the peptide.
Contamination Prevention
Always use sterile techniques when handling peptides. Use fresh syringes and alcohol swabs to prevent bacterial contamination.
Light Sensitivity
Many peptides are light-sensitive. Store in original packaging or amber vials and avoid prolonged light exposure during handling.
Reconstitution Best Practices
When reconstituting peptides, the concentration depends on your research needs. A common approach is to add 1-2mL of bacteriostatic water per 5mg of peptide.
- Use sterile technique throughout
- Add water slowly along vial wall
- Use sterile technique throughout
- Add water slowly along vial wall
Peptide Categories
Understanding peptide classifications by their primary mechanisms and research applications.
Growth Hormone Releasing Peptides
Peptides that stimulate the release of growth hormone from the pituitary gland.
Examples:
- Sermorelin
- CJC-1295
- Ipamorelin
- GHRP-6
Mechanism: Act on the hypothalamus and pituitary to stimulate natural GH secretion patterns.
Metabolic Peptides
Peptides involved in metabolic regulation and glucose homeostasis.
Examples:
- Sermorelin
- Tirzepatide
- AOD-9604
- 5-Amino-1MQ
Mechanism: Influence insulin secretion, appetite regulation, and fat metabolism pathways.
Healing & Recovery Peptides
Peptides that promote tissue repair and accelerate healing processes.
Examples:
- BPC-157
- TB-500
- Thymosin Beta-4
- GHK-Cu
Mechanism: Modulate growth factors, angiogenesis, and inflammatory pathways to support repair.
Longevity Peptides
Peptides researched for their potential effects on aging processes.
Examples:
- Epithalon
- NAD+
- MOTS-C
- SS-31
Mechanism: Target telomere maintenance, mitochondrial function, and cellular senescence.
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