Understand the source comparison
IGF-1 LR3 vs Other Recovery Peptides: Comparison
IGF-1 LR3 Sustained mTOR activation via prolonged IGF-1R binding 20–30 hours IGF-1 receptor Multi-day muscle recovery, collagen synthesis, satellite cell differentiation Poor blood-brain barrier penetration limits CNS applications Best choice for recovery stud
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- IGF-1 LR3
- Sustained mTOR activation via prolonged IGF-1R binding
- 20–30 hours
- IGF-1 receptor
- Multi-day muscle recovery, collagen synthesis, satellite cell differentiation
- Poor blood-brain barrier penetration limits CNS applications
- Best choice for recovery studies requiring 48+ hour anabolic signaling
- Native IGF-1
- Acute anabolic signaling limited by IGFBP binding
- 12–15 minutes free; 12–15 hours bound
- Immediate post-exercise signaling, acute metabolic studies
- Rapid clearance and IGFBP variability create dosing inconsistency
- Suitable for acute signaling studies but not extended recovery models
- MGF (Mechano Growth Factor)
- Satellite cell recruitment and early repair initiation
- 5–7 minutes
- IGF-1 receptor (E-domain specific)
- Acute muscle damage response, satellite cell activation
- Extremely short half-life limits sustained recovery effects
- Complements LR3 by initiating repair; does not sustain it
- BPC-157
- VEGF upregulation, fibroblast migration, collagen organization
- 4–6 hours stable in gastric juice; unclear systemically
- Non-receptor mediated (mechanism debated)
- Tendon healing, gut repair, vascular protection
- Mechanism poorly characterized; inconsistent bioavailability
- Promising empirical data but lacks the mechanistic clarity of IGF-1 signaling
- TB-500 (Thymosin Beta-4)
- Actin sequestration, cell migration, anti-inflammatory signaling
- 2–4 hours
- Non-receptor mediated
- Wound healing, inflammation modulation, muscle tear recovery
- Broad tissue distribution creates difficulty isolating muscle-specific effects
- Effective for connective tissue repair but less specific to muscle hypertrophy