Alpha-Defensin vs GHRP-6

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

Alpha-Defensin

Alpha-defensins are small cationic peptides that are key components of the innate immune system. They have broad-spectrum antimicrobial activity against bacteria, fungi, and some viruses.

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GHRP-6

Growth Hormone Releasing Peptide 6 (GHRP-6) is one of the first synthetic growth hormone secretagogues discovered. It stimulates significant GH release but is known for causing intense hunger.

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Side-by-Side Comparison

AspectAlpha-DefensinGHRP-6
MechanismInsert into microbial membranes to form pores, leading to cell death. Also have immunomodulatory effects including chemotaxis of immune cells and cytokine modulation.Acts as a ghrelin mimetic, binding to the GHS-R receptor in the pituitary and hypothalamus. Stimulates GH release and also significantly increases appetite by mimicking ghrelin's hunger-signaling effects.
Typical DosageResearch compound - dosing varies by application. Typically studied in laboratory and early clinical research settings rather than for general use.Typical dosing: 100-300mcg administered 2-3 times daily. Often combined with GHRH peptides like CJC-1295 for synergistic effects.
AdministrationVarious routes studied including topical, local injection, and systemic administration depending on application.Subcutaneous injection. Best administered on an empty stomach. The strong hunger response can be beneficial for those trying to gain weight but challenging for cutting.
Side EffectsLimited human use data. May cause local inflammation. Potential for immune activation effects.Intense hunger (most notable effect), water retention, increased cortisol and prolactin, tingling/numbness, and potential blood pressure changes.
Best For

What They Have in Common

Both Alpha-Defensin and GHRP-6 are commonly used for:

Key Differences

Unique to Alpha-Defensin:

Unique to GHRP-6:

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