Where to inject GHK-Cu?

Published human work on GHK-Cu is a cream or gel on skin, not an injection, so the human record has not asked where to inject it. Injectable use circulating online is unverified community practice. If the question is about a research vial used subcutaneously, the anatomy is still the same four sites: abdomen at least two inches from the navel, outer thigh, back of the upper arm, and upper outer buttock. That is not a finding about GHK-Cu. This is not a dose or a protocol. Full walkthrough at /injecting. Profile at /compounds/ghk-cu.

Full injecting guide: sites, needles, rotation, safety

Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.

Part of injecting: sites, needles and safety. Subcutaneous vs intramuscular, where people inject, rotation and lipohypertrophy, needle gauge, aseptic technique, why it stings, and sharps disposal. Full walkthrough at /injecting.