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Comparison Tool

Compare Peptides
Side by Side

Select two peptides to compare their mechanisms, dosing protocols, research evidence, and safety profiles in a structured, easy-to-read format.

Peptide A

Sermorelin

The original GHRH analog for natural growth hormone optimization

Peptide B

Ipamorelin

A selective GH secretagogue with minimal side effects

Category
muscle
muscle
Primary Use
The original GHRH analog for natural growth hormone optimization
A selective GH secretagogue with minimal side effects
Half-Life
N/A
N/A
Route
Subcutaneous injection
Subcutaneous injection
Typical Dose
N/A
N/A
Frequency
Once daily, before bed
1–3 times daily, ideally before bed
Cycle Length
3–6 months
8–12 weeks
Research Status
FDA Approved
Phase II

Sermorelin — Key Benefits

  • Stimulates natural growth hormone production
  • Improves body composition
  • Enhances sleep quality
  • Increases energy levels
  • Supports immune function

Ipamorelin — Key Benefits

  • Selective growth hormone release
  • Minimal impact on cortisol and prolactin
  • Improves body composition
  • Enhances recovery and sleep
  • Anti-aging effects

Sermorelin — Side Effects

  • Injection site reactions
  • Flushing
  • Headache
  • Dizziness
  • Hyperactivity (rare)

Ipamorelin — Side Effects

  • Mild water retention
  • Tingling sensation
  • Increased hunger
  • Injection site reactions

Sermorelin — How It Works

Sermorelin works exactly the same way your brain's natural growth hormone signal does — it binds to the GHRH receptor in your pituitary gland and tells it to produce and release growth hormone. The key difference from synthetic HGH is that Sermorelin respects your body's natural feedback loop. If growth hormone levels get too high, your body automatically reduces the response. This self-regulating mechanism makes it much harder to over-dose compared to injecting synthetic HGH directly.

Ipamorelin — How It Works

Ipamorelin mimics ghrelin — the hormone your stomach releases when you are hungry, which also signals the pituitary to release growth hormone. By binding to the ghrelin receptor in the pituitary, Ipamorelin triggers a clean GH pulse. Unlike older growth hormone peptides (like GHRP-6), it is highly selective, meaning it only activates the growth hormone pathway and leaves cortisol and prolactin largely untouched. This selectivity is what makes it so popular for long-term use.

Educational Use Only. This comparison is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting any peptide protocol.