Are GHK Cu Injections Safe Enough? Alternatives Options Neurogan Health Reuse of needles: is this an indicator of a culture of care? NC3Rs 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, The Hidden Risk of Reusing Pen Needles GHK Cu Peptide Benefits and Side Effects: What to Expect from Injections