What is GHK-Cu?

GHK-Cu (glycyl-L-histidyl-L-lysine copper) is a natural tripeptide physiologically found in human plasma, saliva, and urine. It has a high affinity for copper ions (Cu²⁺) and forms a stable bioactive complex that is involved in a variety of cellular and tissue processes.

The GHK-Cu complex was initially identified as a factor associated with repair and regeneration processes, with its concentration in the body decreasing with age. This observation underlies the increased scientific interest in the peptide in the fields of dermatology, cosmetic science, and regenerative biology.

GHK-Cu is known for its role in tissue regeneration, wound healing, stimulating collagen and elastin synthesis, as well as its antioxidant and anti-inflammatory properties. In cosmetic and dermatological practice, it is used as an active ingredient in serums, creams, and lotions, and in research settings, it is also being studied for potential systemic effects.

Observations on GHK-Cu

GHK-Cu is being studied for its possible effects on multiple biological and physiological processes, including:

Skin Regeneration – associated with stimulating the synthesis of collagen, elastin, and other structural components of the dermis, as well as improving skin elasticity and density.

Wound Healing – accelerated processes of epithelial and connective tissue repair have been observed, as well as better organization of the newly formed matrix.

Hair Growth – it has been studied in connection with the activation of hair follicles, prolongation of the anagen phase, and improvement of microcirculation in the scalp.

Anti-aging effects – associated with reducing the appearance of fine lines and wrinkles, improving skin tone, and the overall appearance of the skin.

Anti-inflammatory effect – shows the ability to modulate local inflammation and reduce oxidative stress in cellular and tissue models.

Organ Protection – experimental data are available for protective effects on the liver, lungs, and nervous system in various models of damage.

Improved Blood Supply – associated with stimulating angiogenesis and improving tissue nutrition.

Recovery after surgery – it has been studied as a factor supporting the healing of surgical wounds and post-traumatic recovery.

Administration and Dosage

Different dosage regimens have been described in the scientific literature depending on the goal and research model, including subcutaneous and topical application. Total weekly doses in the range of 5–10 mg divided into 2-3 applications are most often cited.

With 100 mg + 3 ml bacteriostatic water:

Concentration = 33 mg/ml → 0.1 ml = 3.3 mg

Example values for 100 mg:

0.05 ml = 1.67 mg

0.1 ml = 3.3 mg

0.2 ml = 6.6 mg

Scientific Data

In dermatology, GHK-Cu has shown the ability to restore skin structure, increase collagen synthesis, and improve parameters related to the elasticity and thickness of the dermis. In some clinical and cosmetic observations, a reduction in wrinkle depth and improvement in skin texture have been reported.

In trichology, effects on stimulating hair follicles, slowing hair loss, and improving scalp condition have been reported, with most of the data coming from preclinical models and limited clinical observations.

In gastroenterology and hepatology, protective effects on liver tissue, reduction of inflammatory markers, and improvement of regenerative capacity have been observed in experimental models.

In neurology, GHK-Cu is being studied for its potential to reduce neurotoxic damage and support nerve tissue regeneration, including through the modulation of oxidative stress and inflammatory processes.

Additionally, experimental data have been published on effects on lung regeneration and limiting fibrotic processes in various organs.

Possible Side Effects

Reported adverse reactions in clinical models are rare and generally mild and transient:

• slight redness at the application site

• temporary local discomfort or pain

• headache

• fatigue

Less frequently, changes in skin pigmentation or mild irritation have been described, depending on individual sensitivity and the concentration used.

The information is compiled and systematized from various scientific sources and studies. It is for educational purposes only and should not be used for the diagnosis, treatment, or prevention of diseases.