New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

Get it free
ToolsCompareCJC-1295 vs Bronchogen

CJC-1295 vs Bronchogen

Side-by-side comparison of key properties, dosing, and research.

Growth Hormone Peptides
CJC-1295
Anti-Aging & Longevity
Bronchogen
Summary
CJC-1295 is a synthetic GHRH analog that stimulates the pituitary gland to produce and release growth hormone. The DAC (Drug Affinity Complex) version has a markedly extended half-life. The No DAC version (Modified GRF 1-29) preserves natural pulsatile GH release and is preferred in most protocols.
Bronchogen is a tetrapeptide bioregulator (Ala-Glu-Asp-Leu) developed by Professor Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology. It is a tissue-specific bioregulator designed for the bronchi and lungs, promoting normalization of bronchial epithelial cell function. Research suggests benefits for respiratory health, protection against pulmonary aging, and support for bronchopulmonary conditions.
Half-Life
~30 minutes (No DAC) / 6–8 days (with DAC)
Short (minutes to hours); bioregulator effects are gene-mediated and longer lasting
Admin Route
SubQ
SubQ, Oral
Research
Typical Dose
100 mcg
10 mg per day
Frequency
Once daily, before bed
Daily for 10–30 days
Key Benefits
  • Sustained increase in growth hormone levels
  • Enhanced muscle growth and strength
  • Improved fat metabolism and body composition
  • Better recovery and tissue repair
  • Increased bone density
  • Enhanced immune function
  • Improved skin quality and collagen production
  • Synergistic GH release when combined with GHRPs like Ipamorelin
  • Tissue-specific support for bronchial and lung health
  • Promotes normalization of bronchial epithelial cell function
  • Potential benefits in chronic bronchitis and COPD support
  • Anti-aging effects on pulmonary tissue
  • May reduce frequency of respiratory infections
  • Supports lung function preservation with aging
  • Compatible with other Khavinson bioregulator peptides
Side Effects
  • Water retention / puffiness
  • Carpal tunnel syndrome (with prolonged use)
  • Injection site irritation
  • Hunger increase (minor)
  • +1 more
  • Generally well tolerated in research studies
  • Mild local reactions at injection site (if injected)
  • No significant systemic side effects reported at standard doses
Stacks With