4 Dangerous Side Effects of Peptide Injections GHK Cu might be trending, but its not new., Before you inject yourself with this viral peptide, consider this., This copper peptide has been studied for years in skin repair and collagen signalling, One reused syringe. Lifelong consequences. Watch the syringe being opened in front of you Ensure hands are clean Skin must be cleaned with an alcohol swab No shared Reusing needles and syringes puts you at risk for infections and contributes to the spread of diseases. Always choose a new needle and syringe to ensure safe and effective treatment. Be safe,