AHK-Cu vs Argireline
Side-by-side comparison of key properties, dosing, and research.
Skin & CosmeticAnti-Aging & Longevity
AHK-CuSkin & Cosmetic
Argireline- Summary
- AHK-Cu is a copper tripeptide composed of alanine, histidine, and lysine chelated to copper. Distinct from GHK-Cu, AHK-Cu exhibits strong affinity for hair follicle receptors and demonstrates potent hair growth stimulation alongside wound healing and skin regeneration properties.
- Argireline is the most widely researched topical 'Botox-alternative' cosmetic peptide, an acetylated hexapeptide that inhibits neuromuscular transmission to relax facial muscles and reduce dynamic wrinkle depth by 17–27% in clinical studies.
- Half-Life
- Hours (topical, variable by formulation)
- N/A — topical application; effect duration linked to formulation contact time
- Admin Route
- Topical, Scalp application, Subcutaneous (research)
- Topical
- Research
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- Typical Dose
- 0.01–0.1% concentration
- 5–10% concentration
- Frequency
- Once or twice daily
- Twice daily
- Key Benefits
- Stimulates hair follicle growth and reduces shedding
- Increases dermal papilla cell proliferation
- Promotes wound healing and skin regeneration
- Antioxidant protection via superoxide dismutase activation
- Improves skin elasticity and firmness
- Supports collagen and elastin production
- Reduces depth of dynamic expression wrinkles 17–27%
- Non-invasive topical Botox alternative
- Smooths forehead, eye area, nasolabial fold lines
- Widely studied — published clinical efficacy data
- Synergistic with SNAP-8 for enhanced effect
- Reduces fine lines around eyes (crow's feet)
- Improves skin smoothness and texture
- Well tolerated across all skin types
- Side Effects
- Generally well-tolerated topically
- Mild scalp irritation or redness in sensitive individuals
- Possible temporary hair shedding phase at treatment initiation
- Copper accumulation with excessive systemic use (rare)
- Generally very well tolerated
- At >10%: temporary eyelid/brow ptosis (drooping)
- Rare: mild redness in sensitive skin
- No systemic absorption at cosmetic doses
- Stacks With
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