best injection sites for ghk cu peptide subcutaneous GHK-Cu Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy 5 GHK Cu Peptide Injection
Description
J Neuropathol Exp Neurol 59:314322

Allergic reactions (rare), such as rash, itching, or swelling (especially of the face/tongue/throat), severe dizziness, or trouble breathing
Increased Discomfort: Injections into the sole of the foot can be quite painful

Neither is universally more potent
