The Muscle Growth Stack
Combines GH secretagogues with IGF-1 LR3 for maximum anabolic signaling. CJC-1295 and ipamorelin elevate natural GH production, while IGF-1 LR3 provides direct muscle-building stimulus through insulin-like growth factor receptor activation.
Difficulty
advanced
Est. Cost
$250-500
Duration
8-12 weeks (IGF-1 LR3 cycled 4 weeks on, 4 weeks off)
Peptides
3 compounds
Protocol
| Peptide | Dose | Frequency | Timing | Role |
|---|---|---|---|---|
| CJC-1295 | 100mcg | 2x daily | Post-workout and before bed | GHRH analog for sustained GH elevation |
| Ipamorelin | 200-300mcg | 2x daily | Same timing as CJC-1295 | Selective GHRP for clean GH pulse release |
| IGF-1 LR3 | 20-50mcg | Once daily on training days | Post-workout | Long-acting IGF-1 analog for direct muscle protein synthesis stimulation |
Notes
This is an advanced anabolic peptide stack. CJC-1295/ipamorelin provide the GH foundation. IGF-1 LR3 adds direct muscle-building stimulus. IGF-1 LR3 has a longer half-life than standard IGF-1 (20+ hours vs 15 minutes) and should be injected post-workout on training days only. Cycle IGF-1 LR3: 4 weeks on, 4 weeks off minimum to maintain receptor sensitivity. CJC-1295/ipamorelin can be run continuously. Blood glucose monitoring recommended as IGF-1 LR3 can affect insulin sensitivity. Requires serious training program and high protein diet to maximize benefit.
Related goals
Related Comparisons
Ipamorelin vs CJC-1295: Growth Hormone Peptides Compared
Ipamorelin + CJC-1295 vs MK-677: GH Peptides vs Oral Secretagogue
Tesamorelin vs Ipamorelin: Which GH Peptide Is Right for You?
Sermorelin vs Ipamorelin: Two Paths to Growth Hormone Release
GHRP-2 vs GHRP-6 vs Ipamorelin: Which GHRP Is Best?
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Written by Alejandro Reyes
Founder & Lead Researcher
Reviewed by Peptide Nerds Editorial · Updated March 2026
Medical Disclaimer: Peptide stacks are not FDA-approved protocols. This information is for educational purposes only. Consult a qualified healthcare provider before combining any peptides.