### Hexarelin Peptide Overview
**Chemical Profile**:
– **Full Name**: Examorelin (formerly known as Hexarelin).
– **Structure**: Synthetic pentapeptide with amino acid sequence: His-D-2-Methyl-Trp-Ala-Trp-D-Phe-Lys-NH₂.
– **Molecular Formula**: C₄₇H₅₈N₁₂O₆.
– **Molecular Weight**: 887.03 g/mol.
– **Classification**: Growth hormone secretagogue (GHS), ghrelin mimetic.
**Mechanism of Action**:
– Binds to the growth hormone secretagogue receptor (GHS-R1a) in the pituitary gland and hypothalamus.
– Potently stimulates pulsatile release of endogenous growth hormone (GH) and insulin-like growth factor 1 (IGF-1).
– Stronger GH-releasing effect than GHRP-6, with less cortisol/prolactin elevation compared to some analogs like GHRP-2.
**Research-Backed Effects** (from studies, e.g., PubMed IDs: 8895374, 9868855):
– **Anabolic/Metabolic**: Increases lean muscle mass, reduces fat, enhances recovery (animal/human trials).
– **Cardioprotective**: Improves cardiac function post-infarction (rat models).
– **Anti-aging/Neuroprotective**: Potential bone density improvement, neuroprotection.
– **Appetite**: Moderate orexigenic (hunger-inducing) effect via ghrelin mimicry.
**Administration (Research Contexts Only)**:
– **Form**: Typically lyophilized powder reconstituted with bacteriostatic water for subcutaneous/intramuscular injection.
– **Dosage**: 100–200 mcg per dose, 2–3 times daily (e.g., post-workout, bedtime). Cycles: 4–12 weeks, followed by breaks to avoid desensitization.
– **Half-Life**: ~40–60 minutes; short-acting.
**Side Effects (Observed in Studies)**:
– Common: Increased hunger, water retention, numbness/tingling in extremities.
– Rare: Elevated cortisol/prolactin at high doses, potential GH receptor downregulation with chronic use.
– No significant impact on testosterone or thyroid hormones.
**Legality and Safety**:
– **Status**: Not FDA-approved for human use; classified as a research chemical. Banned by WADA for athletes (S2 category).
– **Availability**: Sold online for “research purposes only” .
– **Warnings**:
– Not for human consumption—experimental only.
– Potential risks include injection-site reactions, unknown long-term effects.
– Consult a physician; interactions possible with GH therapies or insulin sensitizers.
– Counterfeits common; verify COAs.
**Comparisons**:
| Peptide | Potency (GH Release) | Hunger | Cortisol Rise | Cost |
|————-|———————-|——–|—————|——|
| **Hexarelin** | High | Medium | Low | Medium |
| Ipamorelin | Medium | Low | Very Low | Medium |
| GHRP-6 | Medium | High | Medium | Low |
| MK-677 | High (oral) | High | Medium | Low |
This is for educational purposes; not medical advice. Always prioritize safety and legality.
