US$ 23.32
ghk-cu increases collagen GHK-Cu: The Peptide That Transforms Skin and Tissue Health – Calibrate IV Enhanced Products
Description
GHK-Cu contributes to extracellular matrix balance, regulates metalloproteinases, and exerts antioxidant effects by reducing reactive oxygen species

it feels uncomfortable when the needle goes in, seems to hit bits of tissue fibre which block the needle

Fish and shellfish: Fish such as salmon, trout, and haddock, as well as shellfish such as clams and mussels, are all rich in vitamin B12
The dose dial typically ranges from 0.01 mL to 0.60 or 0.70 mL per injection, covering the volume range needed for most peptide protocols

Note that in all three molecules metal ions are coordinated - loosely held in the middle - of a structure that contains four nitrogen atoms (yellow stars) which are part of five-membered rings that are geometrically perfected to accommodate metals in the middle
