Hexarelin Overview, Dosing & Safety | Peptide Database

Hexarelin (Examorelin)

Examorelin | Synthetic Growth Hormone Secretagogue

Community Research

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Hexarelin is one of the most potent synthetic growth hormone secretagogues available. It stimulates GH release by binding to the GHS-R1a receptor in the pituitary and hypothalamus, mimicking the action of ghrelin. Notably, Hexarelin demonstrates synergistic effects when combined with GHRH, producing GH responses greater than the arithmetic sum of either peptide alone. It also shows unique cardioprotective properties mediated through the CD36 receptor.

Hexarelin binds to the growth hormone secretagogue receptor 1a (GHS-R1a) in the brain and pituitary gland. This binding initiates a signaling cascade that stimulates somatotroph cells in the anterior pituitary to produce and release growth hormone. Hexarelin also has slight, dose-dependent effects on prolactin, ACTH, and cortisol release. Its cardioprotective effects are mediated through CD36 receptor activation and modulation of calcium channels in cardiomyocytes.

Molecular Data

Histidine

Position 1

D

Position 2

2

Position 3

methyl

Position 4

Tryptophan

Position 5

Alanine

Position 6

Position 7

Position 8

Phenylalanine

Position 9

Lysine

Position 10

NH2

Position 11

Research Indications

Most potent GHRP for stimulating endogenous growth hormone release from the pituitary.

Produces synergistic GH release when combined with GHRH, greater than sum of individual effects.

Significant increases in IGF-1 levels through enhanced GH secretion.

Protective effects on cardiac tissue mediated through CD36 receptor activation.

Reduces apoptosis of cardiomyocytes and controls cardiac action potential.

Cardiotropic effects mediated by elevation of Ca2+ influx through voltage-gated calcium channels.

Beneficial effects on lipid metabolism via CD36 receptor in non-obese insulin-resistant models.

Improved lean mass to fat ratio through GH and IGF-1 elevation.

Dosing Protocols

Subcutaneous or intramuscular injection. Hexarelin is rapidly absorbed after subcutaneous administration and demonstrates stability against proteolytic enzymes. Best administered on empty stomach.

GH optimization

100 mcg

2-3x daily

SubQ or IM

Enhanced results

200 mcg

With GHRH (synergy)

100 mcg each

SubQ (combined)

Cardioprotection

100-200 mcg

1-2x daily

SubQ

Reconstitution Instructions

Bacteriostatic water (BAC)

Insulin syringes (0.5-1 mL)

Alcohol swabs

Peptide vial

Sterile work surface

1 Clean work area and hands thoroughly

2 Calculate required BAC water volume

3 Draw BAC water into syringe

4 Inject slowly down vial side (not directly onto powder)

5 Gently swirl until dissolved (never shake)

6 Store in refrigerator, use within 28 days

Interactions

What to Expect

Side Effects & Safety

Common Side Effects

Increased appetite (less than GHRP-6)

Water retention

Tingling or numbness

Tiredness after injection

Mild headache

Stop Signs - Discontinue if:

Severe or persistent headaches

Unusual swelling

Signs of carpal tunnel syndrome

Allergic reactions

Contraindications

Active cancer or history of cancer

Pregnancy or breastfeeding

Pituitary disorders

WADA prohibited for competitive athletes

Quality Checklist

Good Signs

White to off-white lyophilized powder

Clear solution after reconstitution

Intact vacuum seal on vial

Warning Signs

Slight clumping that dissolves easily

Bad Signs

Discolored or yellow powder

Cloudy solution after reconstitution

Particles or precipitates in solution

Frequently Asked Questions

Does hexarelin work better when combined with GHRH?

Yes. Hexarelin demonstrates synergistic effects with GHRH peptides like CJC-1295, producing GH responses greater than the sum of either peptide alone. This synergy is well-documented in research and is why the combination is popular among users seeking maximum GH elevation.

How long do the effects of hexarelin last?

Hexarelin has a half-life of approximately 75 minutes to 2 hours. This means you'll see a GH spike within 15-30 minutes of injection, peaking around 30-60 minutes, then returning toward baseline. Multiple daily injections are needed to maintain elevated GH levels throughout the day.

Does hexarelin cause the same appetite stimulation as GHRP-6?

No. Hexarelin is significantly more potent for GH release while causing less appetite stimulation than GHRP-6. This makes it preferable if you want strong GH effects without the intense hunger that GHRP-6 typically triggers.

Can I take hexarelin on an empty stomach?

Yes, and you should. Hexarelin is most effective when injected on an empty stomach, ideally 30-60 minutes before eating. Food can interfere with GH release by elevating insulin levels and suppressing ghrelin signaling.

References

Hexarelin treatment improved lipid metabolism via CD36 receptor in non-obese insulin-resistant MKR mice.

Demonstrated synergistic GH response when hexarelin co-administered with GHRH, greater than arithmetic sum.

Hexarelin significantly increased pituitary and hypothalamic GHS-R1a mRNA levels.

Half-life of 75.9 min; rapidly absorbed subcutaneously; stable against proteolytic enzymes.

Related Peptides

Similar mechanism; typically not stacked together but can be alternated.

Same receptor target; Hexarelin is more potent with less appetite stimulation.

Both are GHRPs; Hexarelin is more potent but may have more side effects.

Disclaimer

This information is for educational and research purposes only. Consult a healthcare professional before use.