Understanding Peptides: The Basics
Peptides are short chains of amino acids, typically containing 2-50 amino acids linked together. They are essentially smaller versions of proteins and serve as signaling molecules in the body.
How Do Peptides Work?
Peptides work by binding to receptors on cells and triggering specific biological responses. Different peptides target different receptors, which is why they have such varied effects:
- Some stimulate growth hormone release
- Others promote tissue repair and healing
- Some affect appetite and metabolism
- Others influence sleep and recovery
Common Categories of Peptides
GLP-1 Receptor Agonists
These peptides affect appetite and blood sugar. Examples include:
- Semaglutide - For weight management and diabetes
- Tirzepatide - Dual-action GLP-1/GIP agonist
- Liraglutide - Daily GLP-1 agonist
Growth Hormone Secretagogues
These stimulate natural growth hormone production:
- Ipamorelin - Selective GH releaser
- CJC-1295 - Extended GH-releasing hormone analog
- Tesamorelin - FDA-approved GHRH analog
Healing and Recovery Peptides
These support tissue repair:
- BPC-157 - Body Protection Compound
- TB-500 - Thymosin Beta-4 fragment
- GHK-Cu - Copper peptide for skin and healing
How Are Peptides Administered?
Most research peptides require injection because they would be broken down if taken orally:
- Subcutaneous: Under the skin (most common)
- Intramuscular: Into the muscle
- Oral: Limited options (oral semaglutide exists)
- Topical: Some peptides like GHK-Cu
Peptide Terminology to Know
- Lyophilized: Freeze-dried powder form
- Reconstitution: Mixing powder with water
- Bacteriostatic water: Sterile water with preservative
- mcg (microgram): 1/1000th of a milligram
- Titration: Gradually increasing dose
Getting Started Safely
If you're new to peptides:
- Research thoroughly before starting anything
- Consult with a healthcare provider
- Start with lower doses and increase gradually
- Use proper sterile technique
- Source from reputable vendors
Next Steps
Ready to learn more? Explore our resources:
- Peptide Calculator - Calculate doses
- Peptide Library - Detailed peptide profiles
- Reconstitution Guide - Step-by-step mixing