ghk-cu for loose skin Copper Peptide & Hyaluronic Acid - Body Lotion - Firming 10 fl oz GHK-CU Crepey Skin Escape -
Description
Phenotypic and functional analysis of macrophages and monocytes from the peritoneum of mice following multiple doses of mRNA NPs showed that the population of immunosuppressive macrophages reduced from an average of 43% in controls to 2.5% in treated mice

The injection site When people complain about arm or leg pain after B12 injections, its often because of intramuscular delivery
Groneberg D, Springer J, Fischer A

It is more precise to envision a web of sorts with water moving in many directions