Follistatin-344 vs IGF-1 LR3
Both are categorized under Muscle growth in our directory—here is how they differ in name, use, and label context.
Follistatin-344
Muscle growth
A peptide that blocks myostatin signaling—discussed for muscle mass but with serious safety unknowns.
Follistatin inhibits myostatin, a protein that limits muscle growth. Gene-therapy and peptide approaches have shown dramatic muscle gains in animals. Human use is experimental; long-term safety is not established.…
IGF-1 LR3
Muscle growth
A modified insulin-like growth factor with a longer half-life—highly potent and tightly regulated.
IGF-1 LR3 binds IGF receptors to promote muscle cell hyperplasia. It is significantly more potent than endogenous IGF-1 and carries hypoglycemia risk. Banned in sport; not a casual recovery peptide.…
Quick comparison
- Follistatin-344: Muscle growth — A peptide that blocks myostatin signaling—discussed for muscle mass but with serious safety unknowns.…
- IGF-1 LR3: Muscle growth — A modified insulin-like growth factor with a longer half-life—highly potent and tightly regulated.…