If I have any of this wrong, feel free to correct me (addressing more experienced members of this forum) The problem with a retest at this point is that after 6 injections, the B12 level will likely be elevated and it will be very difficult to know what the original value would have been
Williams supplement protocols from Fullscript
It functions as a tissue-repair signal, sending instructions to local cells about wound healing, inflammation control, collagen synthesis, and, relevant here, hair follicle maintenance.4 Instead of opening a single channel or extending a single phase of the hair cycle, GHK-Cu acts as a regulatory signal across multiple pathways
British Journal of Haematology , 166(4), 496-513.
This is sufficient for multi-dose vial use because the preservative continuously suppresses any small microbial load introduced during punctures, preventing it from reaching levels that pose contamination risk
Store in a cool, dry environment away from direct light