No, this is a major red flag
Soon, though, you may be able to use a needle-free injection device
In fact, comparing the research using GHK-Cu peptide injection vs topical routes shows that the majority of clinical studies have utilized the topical option to research the efficacy of the copper peptide for cosmetic applications
The three standard injection sites are the abdomen (at least 2 inches from the navel), the front of the thigh (middle third), and the back of the upper arm
They overlap, but each one has a different peptide profile
You can change your diet to include vitamin B12-fortified grains, a supplement or B12 injections, or a high-dose oral vitamin B12 if you are deficient