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Source comparison

Peptides Help With Muscle Growth: Mechanism Comparison

GHRP-2 / Ipamorelin Ghrelin receptor agonist (pulsatile GH release) 2–3 hours 40–60% above baseline 8–12% with training Subcutaneous injection, 2–3× daily CJC-1295 with DAC GHRH receptor agonist (sustained GH elevation) 6–8 days 45–90% above baseline 10–15% wi

This comparison does not assign a generated winner or score.

  • GHRP-2 / Ipamorelin
  • Ghrelin receptor agonist (pulsatile GH release)
  • 2–3 hours
  • 40–60% above baseline
  • 8–12% with training
  • Subcutaneous injection, 2–3× daily
  • CJC-1295 with DAC
  • GHRH receptor agonist (sustained GH elevation)
  • 6–8 days
  • 45–90% above baseline
  • 10–15% with training
  • Subcutaneous injection, weekly
  • MK-677 (Ibutamoren)
  • Oral ghrelin mimetic (24-hour GH stimulation)
  • 4–6 hours (plasma), 24h effect
  • 50–70% above baseline
  • 6–10% with training
  • Oral daily dosing
  • Hexarelin
  • High-affinity GHSR1a agonist (strongest GH pulse)
  • 70 minutes
  • 60–100% peak levels
  • 12–18% with training
  • Subcutaneous injection, 2× daily
  • Assessment: Peptides help with muscle growth when GH-IGF-1 axis stimulation is paired with adequate protein intake (1.6–2.2g/kg) and progressive overload. Gains plateau without training stimulus.