ghk cu anti inflammatory effects GHK-Cu for Skin Rejuvenation Male Hair Restoration Before &
Description
Drugs Medication, without carrier or peptidase inhibitor, includes pentadecapeptide BPC 157 (a partial sequence of human gastric juice protein BPC, freely soluble in water at pH 7.0 and in saline

This covers 18 different health markers, including B12

Barbiellini Amidei, C

But IRL, theres no evidence to back that up
And the honest answer is: it depends on the injury

A sharps container for used needle disposal