PeptideInfo
العربيةGet the app
☰
Skin & Aesthetics

GHK-Cu

Copper Peptide GHK · glycyl-L-histidyl-L-lysine copper

Copper chelation supports copper-dependent enzymes. GHK-Cu increases collagen I and III, elastin and glycosaminoglycans, activates TGF-β and VEGF signaling, and induces superoxide dismutase and catalase to reduce oxidative stress.

Not medical advice. Educational reference only.

Route
Topical; subcutaneous injection; intradermal injection

What is GHK-Cu?

GHK-Cu is glycyl-L-histidyl-L-lysine bound to copper. This naturally occurring tripeptide is present in plasma, saliva and urine and binds copper ions strongly. Dermatology research has shown stimulation of collagen and elastin production, faster wound repair, activation of antioxidant enzymes and reduced inflammatory skin damage. Cosmetic preparations include serums and creams; injectable formulations also exist.

Mechanism of action

Copper chelation supports copper-dependent enzymes. GHK-Cu increases collagen I and III, elastin and glycosaminoglycans, activates TGF-β and VEGF signaling, and induces superoxide dismutase and catalase to reduce oxidative stress.

Targets: Copper-dependent enzymes · TGF-β receptor · Extracellular matrix proteins

Research indications

  • Skin Repair

    Effective

    Collagen production and maintenance of the skin barrier are potential benefits.

  • Anti-Aging

    Effective

    Investigations suggest possible improvements in skin texture and fine wrinkles.

  • Wound Healing

    Moderate

    Repair of wounds in the skin may occur more quickly.

Interactions

  • Other medications

    Caution

    Consult your prescriber before combining with any medication.

  • BPC-157

    Compatible

  • NAD+

    Compatible

  • Vitamin D

    Compatible

How to reconstitute and inject

  1. Wash your hands and clean the work surface before handling the preparation.
  2. Use the instructions supplied with the topical product; these preparations usually come ready to apply.
  3. Spread a thin layer over clean, dry skin in the intended area.
  4. Follow the package storage directions, usually room temperature with protection from direct sunlight.
  5. Keep the product off broken or irritated skin unless your provider directs otherwise.

What to expect

Week 1–2
Early effects may emerge during adaptation. Watch for adverse reactions.
Week 2–4
The main effects may start to appear. Change dosing only as your provider recommends.
Week 4–8
The principal effects are expected to be apparent by this stage. Review progress with your provider.
Week 8+
Review the outcome with your provider and decide whether to continue, cycle treatment or adjust the dose.

Side effects and safety

  • Redness, bruising or slight pain at an injection site
  • Possible allergic reactions; stop use if hives or a rash develop
  • Responses differ between individuals; begin with the lowest dose and observe your response carefully
  • Speak with your healthcare provider before use and report unexpected symptoms

Frequently asked questions

How are research schedules specified?

Starting schedules use a low dose, while standard schedules use titration. Frequency follows the individual protocol and the route varies. Neither schedule specifies a numeric dose, so there is no defined amount to calculate from these rows.

What supports topical skin use?

Loren Pickart discovered GHK in 1973. Cell studies and some in vivo work support collagen stimulation, skin tightening and wound repair. Topical clinical investigations at concentrations of 1–5% show measurable changes in fine lines, skin density and elasticity. Randomized human trials remain limited. Copper-dependent enzyme activity and increased TGF-β signaling provide mechanistic support, and hundreds of tissue-remodeling genes can be affected.

Which routes are used?

Topical application is more common and accessible. Subcutaneous and intradermal injections are also used in research and medical aesthetics for direct tissue delivery in wound-repair and aging-related protocols. Prepare injectable formulations under sterile conditions. Consult a licensed aesthetic practitioner or dermatologist for guidance.

What safety considerations matter?

Adverse effects depend on the amount used, the route and individual response. Discuss the formulation and your individual circumstances with a healthcare professional. Consult your healthcare provider before combining compounds, and report unexpected symptoms. The timelines and compatibility categories do not establish clinical effectiveness or prove that combinations are safe.

References

  1. GHK-Cu in wound healing and tissue regeneration (2008)

  2. GHK peptide as a natural modulator of multiple cellular pathways (2014)

  3. GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration. (2015)

    PMID 26236730DOI 10.1155/2015/648108

  4. Biomimetic Hydrogel Scaffolds with Copper Peptide-Functionalized RADA16 Nanofiber Improve Wound Healing in Diabetes. (2022)

    PMID 35598070DOI 10.1002/mabi.202200019

  5. Pickart L & Margolina A — GHK review (2018) (2018)

  6. GHK-Cu may prevent oxidative stress in skin by regulating copper and modifying expression of numerous antioxidant genes (2018)

  7. GHK-Cu copper peptide studies on ClinicalTrials.gov (2024)