What Is GHK-Cu?
GHK-Cu (Copper Peptide) is a naturally occurring peptide complex made from the glycyl histidyl lysine (GHK) sequence bound to a copper ion. First identified in human plasma, it has been widely studied for regenerative and anti aging research interest, particularly around skin remodeling, wound healing, and collagen related signaling.
Mechanisms of Action
Stimulate collagen and glycosaminoglycan synthesis involved in extracellular matrix structure and skin elasticity
Reduce inflammation related signaling, supporting redness and irritation reduction endpoints in certain skin models
Promote tissue regeneration by supporting fibroblast activity and repair associated cellular signaling
Provide antioxidant protection through copper linked redox biology, reducing oxidative stress related damage markers
Modulate gene expression by upregulating repair and immune response genes while downregulating inflammation and damage associated expression patterns
Benefits
Skin rejuvenation signals including improved texture and elasticity and reduced appearance of wrinkles in cosmetic models
Faster wound healing endpoints in cut, burn, and tissue injury paradigms
Hair follicle support signals that may relate to improved thickness and regrowth related outcomes in some models
Broader soft tissue regeneration interest, including muscle recovery and joint or connective tissue repair endpoints
Dosing
Strength | Dose |
|---|---|
Low | 1 to 2 mg per day |
Medium | 2 to 3 mg per day |
High | 5 mg or more per day |
Safety Profile
Some report temporary “copper uglies” early with GHK-Cu, such as redness, puffiness, or breakouts. These are typically described as short term cosmetic changes that can show up when skin turnover and remodeling signaling increases, similar to a renovation phase that looks worse before it looks better.
Redness may reflect increased localized repair activity, puffiness can look like swelling when hydration shifts quickly, and breakouts can occur as older debris is cleared during faster turnover. In most discussions this is framed as a transient adjustment phase rather than true skin damage.
Stacking
Beauty & Anti-Aging Stack
GHK-Cu
MT-2
Glutathione
HGH or CJC-1295/Ipamorelin or Tesamorelin
Epithalon
5-Amino-1MQ and/or NAD+
Advanced Repair Stack
GHK-Cu
BPC-157
TB-500
KPV
HGH or CJC-1295/Ipamorelin or Tesamorelin
Disclaimer: The information provided is intended solely for educational purposes and should not be considered a replacement for professional medical advice. All compounds referenced are not for human consumption.
