Educational reference only. Not medical advice. Consult a healthcare provider before starting any protocol.
GHK-Cu
Copper Peptide GHK-Cu
What it is
GHK-Cu is a naturally occurring copper-binding tripeptide found in human plasma, saliva, and urine. It has been studied in both human and animal models in the context of wound healing, skin remodeling, and collagen synthesis. Dermatological research has explored its role in skin repair and hair follicle function. It is discussed in communities focused on skin health, anti-aging, and tissue repair.
Community-reported ranges
Ranges sourced from community forums and published preclinical literature. Not dosing guidance.
Reported dose range
1000–3000 mcg
Estimated half-life
Not well characterized (injectable); variable (topical)
Source: Limited published data
Reported cycle length
4–8 weeks on
2–4 weeks off
Route
Subcutaneous, Topical
Common vial sizes
50mg, 100mg
Reported timing
AM or PM
Reported frequency
1x daily
Frequently discussed alongside
Based on community forum discussions. Not a recommendation to combine compounds.
Published research
GHK-Cu has been studied in human dermatological contexts and animal wound-healing models. Published research has examined its role in stimulating collagen synthesis, promoting dermal fibroblast activity, and modulating inflammatory responses. Human studies have primarily focused on topical applications for skin remodeling and wound healing. Some research has explored its effects on gene expression related to tissue repair processes. Injectable use is primarily discussed in community contexts rather than formal clinical research.
Reported side effects
From community self-reports. Not from controlled studies.
Community self-reports include: skin irritation or redness at topical application site, mild discomfort at injection site, and occasional nausea. Copper-related effects at high doses are discussed theoretically in forums. These are anecdotal reports from community forums, not findings from controlled clinical studies.
Regulatory status
FDA (United States)
Not approved as a drug. GHK-Cu is used in cosmetic formulations (topical). Injectable form is not FDA-approved.
Health Canada
Not authorized as a therapeutic product. Topical formulations may fall under cosmetics regulations. No DIN assigned for injectable form.