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FDA Category 2 · restricted from compounding

This compound is on the FDA’s interim Section 503A Category 2 bulks list and cannot be legally compounded by US pharmacies. An HHS announcement in February 2026 signaled intent to restore several peptides to Category 1, but no Federal Register action has been published. Check the FDA PCAC schedule for updates.

Read the full regulatory context
PreclinicalGrowth HormoneSubQ1–2x daily

Hexarelin

Examorelin

Methylated GHRP-6 analog hexapeptide; a potent ghrelin-receptor agonist with additional proposed cardioprotection via CD36.

§ 01   Overview

Overview

Methylated GHRP-6 analog hexapeptide; a potent ghrelin-receptor agonist with additional proposed cardioprotection via CD36.

Studied in PK and cardiac models. No FDA approval.

§ 02   Mechanism

Mechanism of action

Hexarelin is a GHS-R1a agonist with a second binding site at CD36 in cardiac tissue, which is hypothesized to confer cardioprotective effects beyond GH release.

  • 01Strong GH pulse
  • 02Proposed cardioprotective effects via CD36

§ 03   Dosing

Dosing protocol

Standard Protocol

Vial
5 mg
BAC Water
2 ml BAC water
Dose Range
100 – 200 mcg per dose
Route
SubQ
Frequency
1–2x daily
Cycle
4–8 weeks (tolerance develops)

§ 04   Evidence

Evidence & research

Preclinical

Studied in PK and cardiac models. No FDA approval.

FDA Status

Not FDA-approved. On FDA 503A Category 2 bulks list.

§ 06   News

In the news

4 articles from the last 12 months · updates hourly

§ 07   Sourcing

Sourcing & supply

Regulatory status

Restricted from compounding

Placed on the FDA's 503A Category 2 list and cannot be lawfully compounded in the US. No brand pharmacy alternative exists. US buyers encounter only research-use-only (RUO) channels, which the FDA's Intended Use Doctrine treats as unapproved drug sales.

Research-use-only · 1

Research-use-only

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§ 09   Safety

Safety & side effects

Side effects

  • 01Cortisol and prolactin elevation
  • 02Rapid receptor desensitization

Contraindications

None specified.

§ 10   Questions

Hexarelin FAQ

What is Hexarelin?
Methylated GHRP-6 analog hexapeptide; a potent ghrelin-receptor agonist with additional proposed cardioprotection via CD36. Hexarelin is a GHS-R1a agonist with a second binding site at CD36 in cardiac tissue, which is hypothesized to confer cardioprotective effects beyond GH release.
What is Hexarelin used for?
Reported uses include strong gh pulse and proposed cardioprotective effects via cd36. Evidence strength is rated Preclinical — see the evidence section for detail.
How is Hexarelin dosed?
Commonly referenced dosing is 100 – 200 mcg per dose, typically 1–2x daily, administered SubQ. This is educational reference only; consult a licensed clinician before use.
How do you reconstitute Hexarelin?
For Hexarelin, vials commonly come in 5 mg and a common reconstitution is 2 ml BAC water. Use the reconstitution calculator to convert any vial size and water volume into exact insulin-syringe units.
What are the side effects of Hexarelin?
Commonly reported side effects include cortisol and prolactin elevation and rapid receptor desensitization. This list is not exhaustive.
Is Hexarelin legal?
Placed on the FDA's 503A Category 2 list and cannot be lawfully compounded in the US. No brand pharmacy alternative exists. US buyers encounter only research-use-only (RUO) channels, which the FDA's Intended Use Doctrine treats as unapproved drug sales. FDA status: Not FDA-approved. On FDA 503A Category 2 bulks list..

§ 11   References

Selected references

  1. 01

    Imbimbo JCEM

    PMID: 8126144

  2. 02

    Broglio — CD36 cardiac binding

    PMID: 11932327

This site is for educational and research purposes only. It does not constitute medical advice. Always consult a qualified healthcare provider before using any peptide or supplement.