AHK-Cu is a synthetic copper peptide, composed of the amino acid sequence Alanine–Histidine–Lysine bound to a copper ion (Cu²⁺).
Its main function is to improve scalp health and promote hair growth.
In some cosmetic formulas, they are used in combination to create a synergistic effect, caring for the skin and scalp.
ahk cu vs ghk cu
| Peptide | Full Name | Composition |
|---|---|---|
| GHK-Cu | Glycyl-L-histidyl-L-lysine-Cu | Tripeptide + Copper |
| AHK-Cu | Ala-His-Lys-Cu | Tripeptide (Alanine-based) + Copper |
AHK-Cu and GHK-Cu differ in structure, biological activity and cosmetic applications.
GHK-Cu mainly focuses on skin repair and anti-aging, while AHK-Cu specifically targets hair follicle stimulation.
| Aspect | GHK-Cu | AHK-Cu |
|---|---|---|
| Primary Function | Skin regeneration, wound healing, anti-aging | Hair growth stimulation |
| Tissue Affinity | Skin, connective tissue | Hair follicles, scalp |
| Mechanism | Stimulates collagen, elastin, and glycosaminoglycan production; anti-inflammatory | Enhances dermal papilla cell activity; prolongs anagen phase of hair |
| Antioxidant/Anti-inflammatory | Strong | Moderate |
| Copper Affinity | Very high, stable complex | High |
| Anti-wrinkle Effect | Excellent | Mild or indirect |
| Skin Firming & Repair | Very strong | Limited (secondary) |
| Hair Growth Promotion | Moderate | Strong and targeted |
|
Items |
Standards |
Results |
|
Appearance |
Blue crystalline powder |
Complies |
|
Identity by ESI-MS |
Theoretical MW:415.12 |
Complies |
|
Purity (HPLC) |
≥95.0% |
99.86% |
|
Water (K.F.) |
≤5.0% |
3.14% |
|
Cu+ content |
8.0- 12.0% |
11.70% |
|
AHK content |
≥65.0% |
70.69% |
|
PH(1%Water Soln.) |
6.0-8.0 |
7.30 |
|
Solubility |
≥100mg/ml(H2O) |
Complies |
|
Conclusion |
Conforms to standard |
Complies |
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