Pal-GHK
Also known as: Palmitoyl tripeptide-1, Copper peptide GHK-Cu (palmitoylated form)
Palmitoylated copper peptide designed for topical skincare. Pal-GHK is a lipid-conjugated form of the copper tripeptide GHK, which enhances skin penetration and stability. Used in anti-aging formulations to stimulate collagen synthesis and reduce visible signs of aging.
Research Status
Limited Clinical Data
For research purposes only. Not approved for human use. Not medical advice.
Research Areas
Side Effects
May occur in sensitive skin types or with initial use. Usually resolves within 1-2 weeks as skin acclimates. If persistent, reduce application frequency to once daily or discontinue use.
Some users report a mild tingling sensation immediately after application. This is typically transient and resolves within minutes. Not a sign of adverse reaction.
May occur in individuals with copper sensitivity or allergy to other formulation ingredients. Perform a patch test 24-48 hours before full application. If rash, swelling, or severe itching develops, discontinue immediately and consult a dermatologist.
May occur if applied to already-dry skin or if used without adequate moisturizer. Ensure skin is hydrated and follow with a compatible moisturizer.
No direct photosensitizing effect documented, but copper peptides may enhance skin cell turnover. Always use SPF 30+ sunscreen during daytime use to prevent UV-induced damage.
Dosing Reference
| Parameter | Value |
|---|---|
| Dose range | 2-5 % |
| Frequency | 1-2x daily |
| Timing | Morning and/or evening skincare routine |
| Route | Topical |
Pal-GHK is formulated as a topical cosmetic ingredient and is not injected. Typical concentrations in commercial products range from 2–5% by weight. Apply to clean, dry skin. For research or custom formulation purposes, start at 2% and may titrate to 5% based on tolerance and desired effect. Allow 4–12 weeks to assess efficacy.
Research disclaimer
Figures drawn from published research literature and community logs. Not clinical recommendations. Consult a qualified professional. Research use only.
Reconstitution Guide
Do not use saline or bacteriostatic saline — use only bacteriostatic water for reconstitution
Do not shake the vial vigorously; gentle swirling prevents peptide degradation
Discard immediately if the solution appears cloudy, discolored, or contains visible particles
Use within 30 days of reconstitution when stored at 2–8°C
Do not freeze the reconstituted solution; freezing may denature the peptide
Use the PeptideVolt reconstitution calculator for your exact concentration
Molecular and Pharmacological Data
| Molecular weight | approximately 571 Da (palmitoylated tripeptide) |
| Half-life | Not precisely defined for topical application; stability in formulation typically 6-12 months when stored properly |
| Sequence | Palmitoyl-Gly-His-Lys (GHK with N-terminal palmitoyl conjugate) |
Pal-GHK is a lipid-conjugated form of the copper tripeptide GHK that enhances skin penetration and stability compared to unmodified GHK. The palmitoyl group (a 16-carbon fatty acid) increases the peptide's ability to cross the stratum corneum and remain active in the dermis. Once in the skin, Pal-GHK binds to copper and activates fibroblasts to increase collagen I, III, and IV synthesis, while simultaneously reducing matrix metalloproteinase (MMP) activity that degrades collagen. This dual mechanism—increased collagen production and decreased collagen breakdown—results in improved skin firmness, elasticity, and reduction of visible signs of aging.
Fibroblast Activation and Collagen Synthesis
Pal-GHK-Cu binds to fibroblast receptors and upregulates genes encoding collagen types I, III, and IV. This increases the production of structural proteins that maintain skin firmness and elasticity.
Matrix Metalloproteinase (MMP) Inhibition
The peptide suppresses MMP-1, MMP-2, and MMP-9 activity, which are enzymes that degrade collagen and elastin. Reducing MMP activity preserves existing collagen and prevents further breakdown.
Antioxidant and Anti-inflammatory Signaling
Copper in the Pal-GHK-Cu complex acts as a cofactor for superoxide dismutase (SOD) and other antioxidant enzymes, reducing oxidative stress and inflammation in skin cells.
Wound Healing and Tissue Remodeling
Pal-GHK promotes angiogenesis (new blood vessel formation) and increases growth factor expression, supporting skin repair and regeneration processes.
- Pal-GHK is more stable and penetrates skin more effectively than unmodified GHK due to the palmitoyl lipid conjugate
- Copper is essential for the peptide's bioactivity; the GHK-Cu complex is the active form
- Collagen synthesis increases within 2-4 weeks of consistent topical application
- MMP inhibition helps prevent age-related collagen degradation and maintains skin structural integrity
- The peptide works synergistically with the skin's natural repair mechanisms rather than disrupting them
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View all peptidesResearch Use Only. All content on this page is provided for informational and educational purposes related to scientific research. Pal-GHK is not approved for human use by the FDA or any equivalent regulatory body. This is not medical advice. Do not use any substance discussed here for therapeutic, diagnostic, or preventative purposes. Consult a qualified healthcare professional before making any health-related decisions. The Peptide Volt does not endorse the use of any research chemicals. 18+ only.