HGH vs. HGH Fragment vs. AOD-9604

HGH (Somatropin)
Full-length growth hormone – 191 amino acids
Stimulates IGF-1 for broad growth, recovery, and metabolic support
Used in research on muscle growth, anti-aging, and fat loss
Increases lean mass and can promote water retention in models

HGH Fragment (176-191)
Tail-end segment of HGH – targets fat loss directly
Boosts lipolysis without the broad effects of full-length HGH
No significant insulin resistance in lab scenarios
Often studied for “dry” lean mass retention and cutting phases

AOD-9604
Synthetic peptide derivative of HGH Fragment
Refined for pure fat-burning activity
No impact on IGF-1 or growth pathways – purely metabolic
Research focuses on obesity models and metabolic health
What are they used for (in research)?
- HGH (Somatropin) – Full-body muscle growth, tissue healing, performance longevity
- HGH Fragment (176-191) – Fat loss with lean muscle preservation
- AOD-9604 – Targeted adipose tissue breakdown in metabolic and obesity models