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Peptide Therapy GuideClear peptide education

Understand the source comparison

Peptide Protocol Comparison: Mechanism, Dosing, and Telomerase Pathway

MK 677 Ghrelin receptor agonist → GH/IGF-1 elevation 12.5–25mg once daily Oral (capsule) or sublingual IGF-1 → PI3K/AKT → hTERT transcription N/A (oral formulation stable at room temp) Epithalon Direct chromatin interaction near telomeric regions (proposed) 5–

No winner is assigned.

This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.

  • MK 677
  • Ghrelin receptor agonist → GH/IGF-1 elevation
  • 12.5–25mg once daily
  • Oral (capsule) or sublingual
  • IGF-1 → PI3K/AKT → hTERT transcription
  • N/A (oral formulation stable at room temp)
  • Epithalon
  • Direct chromatin interaction near telomeric regions (proposed)
  • 5–10mg daily for 10 days, cycled every 3–6 months
  • Subcutaneous injection
  • Direct telomerase activation in fibroblasts and lymphocytes
  • 2–8°C, use within 28 days
  • GHRP-2
  • Hypothalamic GH secretagogue
  • 100–300mcg 2–3× daily
  • Pulsatile GH → IGF-1 → hTERT upregulation
  • Thymalin
  • Thymic peptide bioregulator → immune restoration
  • 10mg daily for 10 days, cycled 2× annually
  • Intramuscular injection
  • Restores T-cell telomerase activity via thymic function
  • GHRP-6
  • GH-releasing hexapeptide
  • 100–200mcg 2–3× daily
  • Similar to GHRP-2, slightly lower potency