Follistatin 344 vs GHRP-2
Side-by-side comparison of key properties, dosing, and research.
Anabolic & IGF
Follistatin 344Growth Hormone Peptides
GHRP-2- Summary
- Follistatin 344 is a recombinant form of the endogenous follistatin protein. It inhibits myostatin and activin — the primary negative regulators of muscle growth — potentially removing the genetic ceiling on muscle development. It is one of the most theoretically powerful anabolic compounds but is experimental with limited human data.
- GHRP-2 is a potent synthetic hexapeptide that stimulates growth hormone release by activating ghrelin receptors in the pituitary and hypothalamus. It produces one of the strongest GH pulses among GHRPs, though unlike Ipamorelin it does cause modest increases in cortisol and prolactin.
- Half-Life
- ~24–36 hours
- 15–60 minutes
- Admin Route
- SubQ, IM
- SubQ, Intranasal
- Research
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- Typical Dose
- 100 mcg
- 100–300 mcg
- Frequency
- Once daily
- 2–3 times daily
- Key Benefits
- Inhibits myostatin — removes muscle growth ceiling
- Significant increases in muscle mass and strength
- Reduces fat mass
- Promotes bone density
- May stimulate hair follicle cycling
- Anti-fibrotic effects in muscle tissue
- Synergistic with IGF-1 and other anabolic peptides
- Strong GH pulse stimulation
- Increased IGF-1 levels
- Enhanced muscle growth and recovery
- Improved fat metabolism
- Better sleep quality
- Increased bone density
- Enhanced appetite (less pronounced than GHRP-6)
- Anti-aging effects via GH axis optimization
- Side Effects
- Muscle soreness (from rapid hypertrophy)
- Potential reproductive effects (activin inhibition)
- Unknown long-term safety profile
- Possible esophageal effects at high doses (animal data)
- Increased appetite
- Water retention
- Elevated cortisol (modest)
- Elevated prolactin (modest)
- +2 more
- Stacks With
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