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| Peptide | Target Receptor | Mechanism | Half-Life | Typical Dosing | Primary Use Case | Professional Assessment ||—|—|—|—|—|—|| Kisspeptin-10 | GPR54 (hypothalamus) | Stimulates pulsatile GnRH release | 28 minutes | 0.24 nmol/k…
MK 677 (Ibutamoren) Ghrelin receptor agonist. Stimulates continuous GH release 12.5–25mg daily Once daily (oral or subcutaneous) 15–25% increase in free testosterone over 8–12 weeks in clinical trials Best for sustained GH elevat…
The table below compares the three primary peptide approaches for growth hormone stimulation and downstream testosterone support. Categorized by mechanism, dosing complexity, and realistic timeline. GHRH Analogs (CJC-1295 with DA…