GHK-Cu: A Copper Peptide with Anti-Aging Properties

In recent years, the world of cosmetics and medicine has become more fascinating than ever, with the discovery of new molecules that promise to restore some of our lost youth. One of these molecules, which has garnered significant attention from scientists and skincare enthusiasts alike, is glycyl-histidyl-lysine copper (GHK-Cu).

GHK-Cu, also known as copper tripeptide-1 or glycyl-L-histidyl-L-lysine copper, is a natural peptide containing three amino acids: glycine, histidine, and lysine, bound together with a copper atom. This peptide is naturally found in the human body, with higher concentrations in childhood that gradually decline with age.

It is important to clarify: GHK-Cu is not a peptide derived from food. It is an endogenous peptide naturally produced in the human body and found in blood plasma, with its concentrations decreasing with age. In practical use, it appears mainly in topical skincare and cosmetic products, not as a nutritional component obtainable from foods.

Research Findings in Biological Systems:

In addition to its well-known effects on the skin, GHK-Cu has been studied in various systems of the body. It is important to emphasize that most of these findings are preliminary and come from laboratory and animal studies only, and have not yet been proven as a disease-preventive benefit in humans:

• Immune System: Preliminary findings from laboratory and animal studies only, with no evidence of disease-preventive benefit in humans.
• Nervous System: Preliminary findings from laboratory and animal studies only, with no evidence of disease-preventive benefit in humans.
• Skeletal System: Preliminary findings from laboratory and animal studies only, with no evidence of disease-preventive benefit in humans.
• Cardiovascular System: Preliminary findings from laboratory and animal studies only, with no evidence of disease-preventive benefit in humans.
• Skin: Improves skin appearance and reduces signs of aging (the most research-supported area).

GHK-Cu is a small peptide found in nature that acts as a messenger within cells.
It plays an important role in skin healing and maintenance processes.
The molecule is considered capable of penetrating the skin layers, and certain formulations are designed to enhance its penetration into cells, where it may activate a wide range of beneficial actions.
As a result, GHK-Cu has gained great popularity in the cosmetics field due to its many skin benefits.

It is known for its ability to:

• Stimulate collagen and elastin production: Essential components for maintaining skin firmness and strength.
• Reduce wrinkles and fine lines: By stimulating skin cell renewal and promoting collagen production.
• Improve skin texture: By smoothing fine lines and blurring imperfections.
• Lighten age spots and post-acne marks: By promoting skin cell renewal and reducing melanin production.
• Support the skin's antioxidant defense mechanisms: May help the skin cope with oxidative damage.
• Enhance wound healing: By stimulating the growth of new cells.

Mechanism of Action:

The benefits of GHK-Cu for the skin are attributed to several mechanisms of action:

• Stimulation of collagen and elastin production: GHK-Cu binds to specific receptors in the skin and activates cellular pathways that lead to the creation of new collagen and elastin.
• Antioxidant activity: GHK-Cu protects skin cells from damage caused by free radicals, which contribute to wrinkles and fine lines.
• Anti-inflammatory activity: GHK-Cu reduces skin inflammation, aiding wound healing and reducing redness.
• Promotion of skin cell renewal: GHK-Cu increases the rate of skin cell turnover, helping to lighten spots and post-acne marks and improve skin texture.

Side Effects:

Side effects from topical use on the skin are rare and may include:

• Mild redness or skin irritation
• Slight tingling or burning sensation
• Mild skin dryness
• Mild rash

GHK-Cu is primarily used topically on the skin, and occasionally by injection; oral use is not a common or studied route of administration for it.

Given all this, it is no wonder that GHK-Cu has become a popular ingredient in many skincare products, including creams, serums, and masks.
It is used as a key ingredient in products designed to reduce wrinkles, improve skin appearance, and restore youthfulness to the face.

References:
https://pubmed.ncbi.nlm.nih.gov/29986520/
https://www.mdpi.com/2079-9284/5/2/29
https://www.mdpi.com/2079-9284/2/3/236
https://link.springer.com/referenceworkentry/10.1007/978-3-642-27814-3_162-1