Follistatin vs IGF-1 LR3
| Attribute | Follistatin FST-344 | IGF-1 LR3 Long Arg3 IGF-1 |
|---|---|---|
| Category | Muscle Growth & Performance | Muscle Growth & Performance |
| Best known for | Myostatin inhibition research | Direct anabolic IGF-1 research |
| In plain English | Myostatin is the brake on muscle growth. Follistatin is researched as the brake-release mechanism. | While GH peptides ask the pituitary to release IGF-1 downstream, IGF-1 LR3 delivers the active molecule directly. |
| How it works | Binds and neutralizes myostatin, activin, and related TGF-β family members that limit muscle growth. | Binds IGF-1 receptors to drive cell growth, proliferation, and protein synthesis. |
| Researchers study | Muscle hypertrophy, muscular dystrophy, and aging-related sarcopenia. | Muscle hypertrophy and hyperplasia, recovery, and tissue regeneration. |
| Internet discussion | Hyped in bodybuilding research circles. | Discussed at the intersection of peptides and traditional anabolic research. |
Follistatin
Myostatin inhibition research
Myostatin is the brake on muscle growth. Follistatin is researched as the brake-release mechanism.
Binds and neutralizes myostatin, activin, and related TGF-β family members that limit muscle growth.
Muscle hypertrophy, muscular dystrophy, and aging-related sarcopenia.
Hyped in bodybuilding research circles.
Follistatin is a glycoprotein researched for myostatin inhibition and muscle hypertrophy.
IGF-1 LR3
Direct anabolic IGF-1 research
While GH peptides ask the pituitary to release IGF-1 downstream, IGF-1 LR3 delivers the active molecule directly.
Binds IGF-1 receptors to drive cell growth, proliferation, and protein synthesis.
Muscle hypertrophy and hyperplasia, recovery, and tissue regeneration.
Discussed at the intersection of peptides and traditional anabolic research.
IGF-1 LR3 is a long-acting IGF-1 variant for direct anabolic research.