Dihexa vs LL-37 (Cathelicidin)

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

Dihexa

Dihexa is a nootropic peptide derived from angiotensin IV. It has shown remarkable cognitive-enhancing properties in animal studies, being described as potentially millions of times more potent than BDNF.

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LL-37 (Cathelicidin)

LL-37 is the only human cathelicidin antimicrobial peptide. It plays crucial roles in innate immunity and has shown diverse biological activities including antimicrobial, immunomodulatory, and wound healing properties.

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Side-by-Side Comparison

AspectDihexaLL-37 (Cathelicidin)
MechanismActs as a hepatocyte growth factor (HGF) potentiator by binding to its receptor c-Met. Promotes synaptogenesis, neuronal survival, and cognitive enhancement through this pathway.Disrupts bacterial membranes, neutralizes endotoxins, modulates immune cell function, and promotes wound healing. Has both direct antimicrobial and immunomodulatory effects.
Typical DosageResearch dosing is highly variable due to extreme potency. Typical range: 10-40mg orally or sublingually. Start with lowest doses due to potency.Research protocols vary widely. Typical ranges: 50-200mcg administered subcutaneously 2-3 times weekly. Some protocols use higher doses for acute infections.
AdministrationCan be taken orally, sublingually, or intranasally. Extremely potent - careful dosing is essential. Best used cyclically.Subcutaneous injection. Can cause significant injection site reactions. Often used in conjunction with other immune-supporting protocols.
Side EffectsLimited human data. Reported effects include headache, temporary brain fog during adjustment, and potential mood changes.Injection site pain and reactions are common. May cause flu-like symptoms, temporary fatigue, or immune activation responses.
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Key Differences

Unique to Dihexa:

Unique to LL-37 (Cathelicidin):

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