Kisspeptin-10 vs GHK-Cu
Side-by-side comparison of key properties, dosing, and research.
Sexual Health & LibidoAnti-Aging & Longevity
Kisspeptin-10Skin & CosmeticRecovery & RepairAnti-Aging & Longevity
GHK-Cu- Summary
- Kisspeptin-10 is the biologically active C-terminal decapeptide of kisspeptin, an endogenous regulator of the reproductive axis. It acts upstream of GnRH to potently stimulate LH and testosterone release, and plays a key role in sexual arousal and libido.
- GHK-Cu is a naturally occurring copper complex that declines with age. It is one of the most studied anti-aging peptides, known for powerful skin rejuvenation, wound healing, and tissue remodeling effects.
- Half-Life
- ~4 minutes (rapidly degraded); longer-acting analogs like TAK-448 are in development
- 2–4 hours
- Admin Route
- SubQ, IV
- SubQ, Topical
- Research
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- Typical Dose
- 50–500 mcg
- 1–3 mg
- Frequency
- Once daily to every other day
- 3–5 times per week
- Key Benefits
- Potently stimulates LH and testosterone
- Enhances sexual arousal and libido
- Activates HPG axis — upstream of GnRH
- May improve fertility in hypogonadotropic hypogonadism
- Increases brain activation in sexual attraction circuits
- May restore LH pulsatility in suppressed HPG axis
- Reduces wrinkles and fine lines
- Improves skin firmness and elasticity
- Accelerates wound healing
- Reduces inflammation and oxidative damage
- Promotes hair growth and thickness
- Supports collagen and elastin production
- May improve overall skin health and appearance
- Resets aged fibroblast behavior
- Anti-fibrotic — reduces scar tissue formation
- Side Effects
- Injection site reactions
- Temporary nausea
- Flushing
- Elevated LH/testosterone (intended effect)
- +1 more
- Temporary blue-green discoloration at injection site (from copper — harmless)
- Post-injection sting (brief)
- Skin irritation with topical use (rare)
- Stacks With
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