peptid ghk cu GHK-Cu Copper Peptide Face Tonic (30 mL) | Reduces Appearance of Fine Lines Palmitoyl Tripeptide GHK-Cu - Peptide for Collagen,
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doi: 10.1007/s00213-005-2253-z

The answer depends on your desired final concentration

Extracellular Matrix Remodeling Although all three compounds intersect with connective tissue biology, they influence extracellular matrix regulation differently

Intra-Articular Injection of BPC 157 for Multiple Types of Knee Pain

Intraperitoneal injection of mice results in uptake of infection mostly by internal organs including liver and spleen

They can change your dose if needed and help with any side effects
