Decapeptide-12 vs AHK-Cu
Side-by-side comparison of key properties, dosing, and research.
Skin & Cosmetic
Decapeptide-12Skin & CosmeticAnti-Aging & Longevity
AHK-Cu- Summary
- Decapeptide-12 is a synthetic 10-amino acid peptide developed for skin brightening and depigmentation. It selectively inhibits tyrosinase activity and downstream melanogenesis pathways, reducing hyperpigmentation, dark spots, and uneven skin tone without the irritation associated with hydroquinone.
- 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.
- Half-Life
- Not applicable (topical)
- Hours (topical, variable by formulation)
- Admin Route
- Topical
- Topical, Scalp application, Subcutaneous (research)
- Research
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- Typical Dose
- 5 ppm (0.0005%) concentration
- 0.01–0.1% concentration
- Frequency
- Twice daily (AM and PM)
- Once or twice daily
- Key Benefits
- Reduces hyperpigmentation and dark spots
- Evens skin tone and improves radiance
- Inhibits post-inflammatory hyperpigmentation
- Well-tolerated alternative to hydroquinone
- Effective for melasma and age spots
- Non-cytotoxic to melanocytes
- 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
- Side Effects
- Generally very well-tolerated
- Rare mild irritation or sensitivity in some skin types
- Results may take several weeks to become visible
- 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)
- Stacks With
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