US$ 20.75
immunogenicity of ghk-cu peptide – Research GHK‑Cu Copper Peptide Therapy |
Description
Decrease in vitamin B12 absorption and levels following metformin use typically starts as early as the 4th month

B12 injections are generally well tolerated
2017;12(11):S1847-S8

You can ask them about other treatments that may be better choices for you