My research subject keeps developing pretty nasty bruises at every GHK-Cu injection site, even when technique, needle size, and injection depth are all the same as with other peptides.
What’s interesting is that this only happens with GHK-Cu… no bruising at all with BPC-157, TB-500, etc.
Has anyone else seen consistent bruising or prolonged soreness specifically with GHK-Cu in their research? If so, did you figure out why or find anything that helped mitigate it?