ghk-cu hair growth study clinical Before and After: What to Expect GHK-Cu for Hair Loss: Evidence,

Haematological responses occur within 12 weeks, but nerve repair is slower and may be incomplete if deficiency has been prolonged

16 The aim of this paper is to review the evidence for the use of B12 in clinical practice beyond the replacement in deficiency

Unfortunately, studies on this topic have mainly focused on normalising serum B12 concentrations with oral supplementation and should be interpreted with caution since the specific goal of treatment in symptomatic B12 deficiency is alleviating symptoms, and NOT to normalize B12 concentrations in the blood

Both needle length options work for this protocol, and the user can try both to find their preference