GHK-Cu is the tripeptide Gly-His-Lys complexed with the copper ion Cu²⁺, originally isolated from human blood plasma as a factor stimulating hepatocyte growth. Copper in the peptide structure is not a passive cargo: it acts as a cofactor for lysyl oxidase and lysyl hydroxylase, ensuring proper cross-linking of collagen and elastin fibers in the matrix. In parallel, the Gly-His-Lys peptide backbone activates fibroblast receptors and initiates the TGF-β signaling pathway, increasing type I and III collagen production by up to 70% in laboratory models. The combination of these mechanisms makes GHK-Cu not merely an antioxidant, but a systemic regulator of tissue architecture.
The molecule regulates more than 1,500 genes, shifting cellular expression profiles toward repair and protection. Key directions include: suppression of inflammation and oxidative stress genes, activation of glycosaminoglycan synthesis genes (hyaluronic acid, chondroitin), enhanced angiogenesis in damage zones, and normalization of MMP (matrix metalloproteinase) activity without complete suppression — important for quality tissue remodeling rather than scarring. In biopsies of photo-damaged human skin, topical GHK-Cu application led to significant increases in collagen density and keratinocyte proliferation.
The 10 g volume is intended for extended systemic or multi-focus protocols: where the goal is not a targeted short course but sustained tissue recovery support over several months — rehabilitation, slowing age-related changes in skin and connective tissues, post-injury support. With subcutaneous administration, GHK-Cu reaches the dermis and systemic circulation; topically, it acts primarily within the skin.
✨ Type I/III collagen and matrix: ★★★★★
🧬 Gene expression regulation (1,500+): ★★★★★
🔧 Wound healing and tissue remodeling: ★★★★☆
✅ Safety: ★★★★☆ (endogenous molecule; long-term use in cosmetology confirmed)
⚠️ Possible sensations and side effects: limited human data on high-dose systemic administration; topically usually well tolerated
🤝 Combinations (goal → stack)
✨ Skin + accelerated repair → GHK-Cu + BPC-157
💇 Hair + follicle → GHK-Cu + Capixyl
🧬 Long-term recovery → GHK-Cu + Epitalon
| CAS Number | 89030-95-5 |
| Batch Purity | 99.09 % |
Full information in our guide
https://peptideboost.club/guide/ghk-cu
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