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Lactoferricin vs AHK-Cu

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

Lactoferricin

Lactoferricin is an antimicrobial peptide derived from lactoferrin, a protein found in milk and other secretions. It has potent antibacterial, antiviral, and antifungal properties.

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AHK-Cu

AHK-Cu (Copper Tripeptide-3, Alanine-Histidine-Lysine Copper) is a copper peptide similar to GHK-Cu but with different properties. It's used for hair growth and skin rejuvenation applications.

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Side-by-Side Comparison

AspectLactoferricinAHK-Cu
MechanismBinds to and disrupts microbial membranes through electrostatic interactions. Also binds to lipopolysaccharide (LPS) to neutralize endotoxins and has immunomodulatory effects.The copper-binding tripeptide stimulates collagen synthesis and may promote hair follicle enlargement. Works similarly to GHK-Cu but may have distinct receptor interactions.
Typical DosageResearch applications vary widely. Oral lactoferrin supplements (containing lactoferricin precursor) typically dosed at 100-400mg daily.Topical: 0.5-2% concentration in serums for skin or scalp applications. Often combined with other growth factors for hair formulations.
AdministrationAvailable through lactoferrin supplementation orally. Purified lactoferricin primarily used in research settings.Topical application to skin or scalp. Can be used with microneedling for enhanced penetration. May cause temporary blue-green tint at high concentrations.
Side EffectsLactoferrin supplementation is generally well-tolerated. May cause GI upset in some individuals. Derived from milk so caution with dairy allergies.Generally well-tolerated. May cause skin irritation in sensitive individuals. Temporary discoloration possible.
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Key Differences

Unique to Lactoferricin:

Unique to AHK-Cu:

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