What is GHK-Cu used for?
GHK-Cu (copper peptide) is researched for wound healing, skin regeneration, anti-aging, hair growth, and collagen synthesis. It naturally occurs in the body but declines with age. Available in topical and injectable forms for different research applications.
What is GHK-Cu and how does it work?
GHK-Cu is a naturally occurring tripeptide (glycyl-L-histidyl-L-lysine) bound to copper. It works by activating genes involved in tissue remodeling — upregulating collagen, elastin, and glycosaminoglycan synthesis while suppressing inflammation and oxidative damage. The copper ion is essential for its biological activity.
Why do GHK-Cu levels decline with age?
GHK-Cu is abundant in youth (around 200 ng/mL in plasma at age 20) but drops to about 80 ng/mL by age 60. This decline correlates with reduced wound healing, skin aging, and decreased regenerative capacity. Restoring GHK-Cu levels is a target for anti-aging research.
Can GHK-Cu be used topically or does it need injection?
Both routes work but for different purposes. Topical GHK-Cu (creams, serums) is popular for skin anti-aging and wound healing — it penetrates skin reasonably well. Injectable GHK-Cu provides systemic effects and is used for deeper tissue healing, hair growth, and broader anti-aging benefits.
Does GHK-Cu help with hair growth?
Yes, research shows GHK-Cu can stimulate hair growth by increasing hair follicle size, prolonging the anagen (growth) phase, and improving scalp blood flow. It's often used topically on the scalp or combined with microneedling. Some protocols combine it with other hair growth peptides like PTD-DBM.
What are the anti-aging effects of GHK-Cu?
GHK-Cu stimulates collagen and elastin production, reduces fine lines and wrinkles, improves skin firmness and elasticity, reduces hyperpigmentation, and accelerates wound healing. It also has antioxidant properties and can help with skin repair after procedures like laser treatments or chemical peels.
Can GHK-Cu help with tissue healing?
Yes, GHK-Cu is one of the most studied peptides for wound healing. It accelerates wound closure, reduces scarring, promotes angiogenesis (new blood vessel formation), and attracts immune cells to injury sites. It's been researched for surgical wounds, burns, and chronic non-healing ulcers.
What are the side effects of GHK-Cu?
GHK-Cu is generally very well-tolerated as it's a naturally occurring peptide. Topical use rarely causes irritation. Injectable use may cause mild injection site reactions. Some report temporary skin flushing. Excessive copper intake should be avoided, so don't combine multiple copper-containing supplements without consideration.
How long does reconstituted peptide last?
Once mixed with bacteriostatic water, peptides remain stable for up to 4 weeks when refrigerated at 2-8°C (36-46°F). Unopened powder can last 1+ year in the freezer. Get our complete Storage & Travel Guide.
Is this peptide legal to purchase?
Peptides sold "for research purposes only" are legal to purchase in the US, but are not FDA-approved for human use outside of specific medical applications. Always consult a healthcare provider before use.
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