Hexarelin — Dosing, Cycles, Half-Life & Side Effects

Hexarelin is a growth hormone releasing peptide (GHRP) with a half-life of 2-3 hours. Synthetic hexapeptide and one of the most potent GHRPs available. Also exhibits cardioprotective effects independent of GH release through direct cardiac tissue actions. 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-life2-3 hours
HepatotoxicityNone
Suppression0/10

Typical Dosing Ranges

Common dose range: 100-200mcg 2-3x/day (cycle 2-4 weeks on, 2-4 weeks off)

Cycle length: 4-8 weeks with breaks

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 cortisol and prolactin elevation
  • Rapid desensitization (must cycle)
  • Strong appetite increase
  • Not suitable for long-term continuous use

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 Hexarelin?

Hexarelin has a half-life of approximately 2-3 hours. This figure is used to determine injection frequency (for esters) and post-cycle clearance timing.

What is the typical dose range for Hexarelin?

Commonly reported ranges for Hexarelin: 100-200mcg 2-3x/day (cycle 2-4 weeks on, 2-4 weeks off). Cycle length: 4-8 weeks with breaks. These are compiled from published studies and community-reported usage — individual response varies and lower end is always preferred.

Does Hexarelin suppress natural testosterone?

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

What is Hexarelin typically used for?

Hexarelin is commonly used for: Short-term GH elevation, Recovery from injury, Cardiac support (experimental). Intended-use context does not imply safety — every use case carries the same underlying pharmacological risks.

Is Hexarelin legal?

Hexarelin 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. Imbimbo BP et al.. 1994. J Clin Endocrinol Metab — Hexarelin human PK: t1/2 ~55 minutes; most potent GHRP for GH release
  2. Ghigo E, et al. Growth hormone-releasing peptides. Eur J Endocrinol. 1997;136(5):445-60. PMID: 9186261
  3. Bisi G, Podio V, et al. Cardiac effects of hexarelin in hypopituitary adults. Eur J Pharmacol. 1999. PMID: 10528131

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 Hexarelin. 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.

Skip to main content