GHRP-2 (Pralmorelin) — Dosing, Cycles, Half-Life & Side Effects

GHRP-2 (Pralmorelin) is a growth hormone releasing peptide (GHRP) with a half-life of 20-30 minutes. Synthetic hexapeptide ghrelin mimetic that stimulates GH release. One of the most potent GHRPs with strong appetite-stimulating effects due to ghrelin receptor activation. This page is educational harm-reduction reference compiled from peer-reviewed literature — not medical advice, not an endorsement, not a recommendation to use. Consult a licensed clinician before any decision.

Quick Facts

ClassGrowth Hormone Releasing Peptide
Half-life20-30 minutes
HepatotoxicityNone
Suppression0/10

Typical Dosing Ranges

Common dose range: 100-300mcg 2-3x/day

Cycle length: 12-24 weeks

Dose ranges are compiled from published pharmacokinetic studies and community-reported usage. Where a value is community-reported rather than clinically studied, this page and its structured data flag it. Lower end of any range is always the safer starting point.

Stacking Considerations

  • No structural stacking blockers. Standard harm-reduction rules apply: minimize total androgen load, minimize oral exposure, and monitor bloodwork.

PCT Requirements

  • Never stack two SERMs. Extend a single SERM (tamoxifen OR enclomiphene/clomiphene) rather than combining.
  • Use the cycle planner to generate a full protocol based on your complete stack, not this compound alone.

Side Effect Profile

  • Significant hunger increase
  • Cortisol and prolactin elevation
  • Water retention
  • Short half-life requires multiple doses
  • May disrupt sleep if taken late

Known Interactions

No compound-specific interactions are catalogued in the current matrix. This does not mean no risk exists — it means there is no curated pairwise entry.

Monitoring (Bloodwork & Vitals)

  • Comprehensive metabolic panel (baseline, mid-cycle, post-cycle)
  • Lipid panel (total cholesterol, HDL, LDL, triglycerides)
  • CBC (hemoglobin, hematocrit — watch for erythrocytosis)
  • Sex-hormone panel (Total T, Free T, Estradiol sensitive, SHBG, LH, FSH)
  • Blood pressure (weekly self-check; flag systolic >140 or diastolic >90)

Baseline bloodwork is recommended before any cycle. Discontinue if liver enzymes exceed 3× upper limit of normal or if hematocrit exceeds 54%.

Frequently Asked Questions

What is the half-life of GHRP-2 (Pralmorelin)?

GHRP-2 (Pralmorelin) has a half-life of approximately 20-30 minutes. This figure is used to determine injection frequency (for esters) and post-cycle clearance timing.

What is the typical dose range for GHRP-2 (Pralmorelin)?

Commonly reported ranges for GHRP-2 (Pralmorelin): 100-300mcg 2-3x/day. Cycle length: 12-24 weeks. These are compiled from published studies and community-reported usage — individual response varies and lower end is always preferred.

Does GHRP-2 (Pralmorelin) suppress natural testosterone?

GHRP-2 (Pralmorelin) causes minimal suppression of the HPTA axis (score 0/10). PCT may still be advisable depending on stack and duration.

What is GHRP-2 (Pralmorelin) typically used for?

GHRP-2 (Pralmorelin) is commonly used for: Bulking phases, Recovery, Appetite stimulation, Anti-aging. Intended-use context does not imply safety — every use case carries the same underlying pharmacological risks.

Is GHRP-2 (Pralmorelin) legal?

GHRP-2 (Pralmorelin) is a controlled substance in many jurisdictions (typically Schedule III in the US when it is an anabolic androgenic steroid). StackItSmart does not provide sourcing information. Possession, import, and use without a prescription carry legal consequences that vary by country and state.

Citations

  1. Bowers CY et al.. 2004. J Clin Endocrinol Metab — GHRP-2 dosing and GH release; approved in Japan as diagnostic agent (GHRP Kaken 100)
  2. Bowers CY. Growth hormone-releasing peptide (GHRP). Cell Mol Life Sci. 1998. PMID: 9893708

Disclaimer

StackItSmart is an independent harm-reduction reference. The content above is compiled from peer-reviewed literature and is not medical advice, not an endorsement, and not a recommendation to use GHRP-2 (Pralmorelin). Performance-enhancing compounds carry legal, endocrine, cardiovascular, and hepatic risks. Consult a licensed clinician before any decision. StackItSmart does not provide sourcing, procurement, or dosing prescriptions.

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