GHK-Cu Copper Peptide Repair Serum
A high-concentration overnight repair serum built around GHK-Cu (Copper Tripeptide-1), the naturally occurring copper-binding tripeptide first isolated from human plasma in 1973. This formulation pairs 3% GHK-Cu with 1% Hyaluronic Acid in a lightweight water-based serum, formulated for nightly use on face, neck, and décolletage.
GHK-Cu is one of the most extensively studied copper peptides in skin science. In laboratory research it has been characterized for its role in supporting the skin’s natural remodeling processes, including collagen and elastin activity, matrix cell function, and antioxidant signaling. Plasma levels of GHK decline substantially with age, which has driven decades of research interest in topical delivery formats.
This serum is formulated at a concentration typically used in professional-grade skincare research and is delivered in a light-restricting amber dropper bottle to support ingredient stability. Nightly use is recommended to align with the skin’s overnight recovery cycle and to protect the copper peptide complex from daytime UV exposure.
Key Ingredients
| GHK-Cu (Copper Tripeptide-1) | 3% — the naturally occurring copper-binding tripeptide glycyl-L-histidyl-L-lysine bound to copper(II). The peptide most extensively studied in the skin science literature. |
| Sodium Hyaluronate (Hyaluronic Acid) | 1% — a humectant that supports the appearance of hydrated, plump-looking skin by drawing moisture into the surface layers. |
Full Ingredient List (INCI)
Water (Aqua), Copper Tripeptide-1 (GHK-Cu), Sodium Hyaluronate, Propylene Glycol, Phenoxyethanol, Ethylhexylglycerin.
How to Use
- Cleanse and gently tone skin.
- Apply 3–5 drops to face, neck, and décolletage in the evening.
- Pat gently until absorbed.
- Follow with your usual moisturizer.
- Use daily as part of an evening skincare routine.
For evening use only. Copper peptides are best applied at night away from direct UV exposure. Always use SPF 30 or higher during the day when using peptide-based serums.
Product Specifications
| Size | 30 ml / 1 fl oz |
| Format | Water-based serum |
| Packaging | Amber glass dropper bottle (light-restricting) |
| GHK-Cu Concentration | 3% |
| Hyaluronic Acid Concentration | 1% |
| Fragrance | Fragrance-free |
| Preservative System | Phenoxyethanol + Ethylhexylglycerin |
| Shelf Life (unopened) | 24 months from manufacture |
| After Opening | Use within 6 months; keep tightly closed and away from direct light |
Storage
Store in a cool, dry place away from direct sunlight. Refrigeration is not required but may extend product stability. The naturally blue-green color of the serum reflects the copper complex and is expected.
Precautions
For external use only. Avoid direct contact with eyes; if contact occurs, rinse thoroughly with water. Perform a patch test on the inner forearm 24 hours before first full-face application, especially if you have sensitive skin. Discontinue use if irritation occurs. Not tested on pregnant or nursing individuals; consult your healthcare provider before use if pregnant or nursing. Keep out of reach of children. Do not use if seal is broken.
This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease.