What is GHK-CU?

GHK-CU is a naturally occurring copper-binding peptide, which is a short chain of three amino acids (glycine-histidine-lysine) attached to a copper ion. It was first discovered in human plasma and has gained significant attention for its potential regenerative and anti-aging properties.

Claimed Benefits and Potential Uses

Most of the evidence for GHK-CU comes from in vitro (lab studies) and animal models. Human clinical data is more limited but growing, especially in the field of cosmetics.

1. Skin Health & Anti-Aging (Most Popular Use):

   • Wound Healing & Collagen Production: It is known to upregulate collagen synthesis (types I, II, and III), elastin, and glycosaminoglycans, which are essential for skin firmness and elasticity.

   • Antioxidant & Anti-Inflammatory: Helps protect skin cells from oxidative stress and reduces inflammation.

   • Skin Remodeling: Promotes the repair of damaged tissue and improves overall skin texture and appearance. It’s a common ingredient in high-end “cosmeceutical” serums.

2. Hair Growth:

   • Some studies suggest it can stimulate hair follicles and promote hair growth, leading to its use in some hair loss treatments.

3. Systemic Health (More Experimental):

   • Tissue Regeneration: Research is exploring its potential to aid in the repair of bone, nerve, and other body tissues.

   • Anti-Cancer Properties: Early lab studies show it can induce cell death in certain cancer cell lines, but this is far from a clinical treatment.

   • Cognitive Function: There is preliminary interest in its potential to support brain health and protect against neurodegenerative diseases, but evidence is very early-stage.

Common Forms and Administration

• Topical: The most common and well-researched form. Found in serums, creams, and creams at concentrations typically between 1% and 5%.

• Subcutaneous Injection: This is a more direct, systemic approach used in some wellness and anti-aging clinics. This should only be administered by a qualified healthcare professional.

• Oral Supplements: Available, but the bioavailability (how much is absorbed and used by the body) is considered low compared to other methods.

Important Considerations and Side Effects

1. Side Effects (Topical):

   • Skin Irritation: Can cause redness, itching, or a rash, especially at higher concentrations.

   • Blue-Green Residue: The copper can temporarily stain the skin a bluish-green color, which usually washes off.

2. Side Effects (Injections):

   • Pain at Injection Site: Known to cause a temporary but often significant “burning” or stinging sensation upon injection.

   • Systemic Reactions: As with any injectable, there is a risk of infection, allergic reaction, or other unforeseen issues.

3. Lack of Regulation:

   • Especially for injectable forms, the quality and purity of products can vary widely. It is not an FDA-approved drug for most of its claimed uses.

Summary