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GHRP-2 Acetate vs Hexarelin: Peptide Comparison

The table below summarizes the key pharmacological, dosing, and application differences between GHRP-2 Acetate and Hexarelin based on peer-reviewed research and observed kinetics in controlled studies. GH Peak Potency (100mcg dose) Moderate. Produces 8–12 ng/m

This comparison does not assign a generated winner or score.

  • The table below summarizes the key pharmacological, dosing, and application differences between GHRP-2 Acetate and Hexarelin based on peer-reviewed research and observed kinetics in controlled studies.
  • GH Peak Potency (100mcg dose)
  • Moderate. Produces 8–12 ng/mL peak GH in most models
  • High. Produces 15–22 ng/mL peak GH in first-week administration
  • Hexarelin delivers stronger acute GH pulses initially
  • Receptor Desensitization Timeline
  • Slow. GH response declines ~18–22% by week 4 of daily dosing
  • Rapid. GH response declines ~40–50% by week 2 of daily dosing
  • GHRP-2 Acetate maintains consistency longer
  • Cortisol Elevation (per dose)
  • Mild. Approximately 4 mcg/dL above baseline
  • High. Approximately 12 mcg/dL above baseline
  • Hexarelin produces 3x higher cortisol spikes
  • Prolactin Elevation (per dose)
  • Low. Approximately 6 ng/mL above baseline
  • Moderate. Approximately 18 ng/mL above baseline
  • GHRP-2 Acetate has lower prolactin impact
  • Typical Dosing Range
  • 100–300mcg per dose, 2–3x daily
  • 100–200mcg per dose, 1–2x daily with cycling
  • Hexarelin requires cycling; GHRP-2 can run continuously
  • Optimal Study Duration
  • 4–6 weeks continuous before washout needed
  • 2 weeks on, 1 week off cycling to preserve response
  • Protocol design depends on study length
  • Best Use Case
  • Sustained multi-week GH studies with minimal cortisol confounds
  • Short-duration studies requiring maximal acute GH secretion
  • Choose based on endpoint timeline and hormonal tolerance
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