Hexarelin vs Thymosin Alpha-1

A detailed comparison to help you understand the differences and choose the right peptide for your research goals.

Hexarelin

Hexarelin is a potent synthetic hexapeptide growth hormone secretagogue. It provides the strongest GH release among GHRPs but is associated with rapid desensitization of receptors.

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Thymosin Alpha-1

Thymosin Alpha-1 is a peptide naturally produced by the thymus gland that plays a crucial role in immune system modulation. It is approved in over 35 countries for various conditions including hepatitis B and C.

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Side-by-Side Comparison

Aspect	Hexarelin	Thymosin Alpha-1
Dose Range	100 mcg–300 mcg	1.6 mg–3.2 mg
Frequency	2x daily	Less than daily
Cycle Length	8–12 weeks	4–12 weeks
Route	subcutaneous	subcutaneous
Mechanism	Acts as a ghrelin mimetic with high potency at the GHS receptor. Provides powerful GH release but receptor desensitization occurs faster than with other GHRPs, requiring cycling.	Enhances T-cell function and maturation, stimulates dendritic cell activity, and modulates cytokine production. Promotes the differentiation of stem cells into mature T lymphocytes.
Typical Dosage	Typical dosing: 100-200mcg administered 2-3 times daily for 4-6 weeks, followed by an equal off period to allow receptor resensitization.	Clinical dosing typically ranges from 1.6mg to 6.4mg administered subcutaneously 2-3 times weekly. Research protocols may vary.
Administration	Subcutaneous injection. Cycling is essential to maintain effectiveness. Often used in short bursts rather than continuous protocols.	Subcutaneous injection. Often used in cycles or as part of comprehensive immune support protocols.
Side Effects	Water retention, cortisol and prolactin increase, hunger (moderate), tingling, and potential blood pressure effects.	Generally well-tolerated. Rare side effects include injection site reactions, mild flu-like symptoms, and temporary fatigue.
Best For	Muscle Growth Recovery & Healing	Recovery & Healing