topical ghk-cu vs injectable ghk-cu Peptides Before and After: Dosage, Benefits & How It Works for Skin and Hair Ghk-Cu Experienxe : r/Peptides

Int Immunopharmacol 1(75):105651 Yang W, Hamilton JL, Kopil C, Beck JC, Tanner CM, Albin RL, Ray Dorsey E, Dahodwala N, Cintina I, Hogan P, Thompson T (2020) Current and projected future economic burden of Parkinsons disease in the US

Is peptide therapy safe for long-term use

If the GHK-Cu has lower-than-stated purity or incomplete copper complexing, the actual administered dose and the active complex differ from the calculated values, compromising research validity

It does not interfere with neurotoxin mechanisms and may actually improve the quality of new collagen laid down post-procedure

The answer depends on what you are trying to achieve