vitamin b12 injection dose for horses Troy – vet-n-pet DIRECT Each 15 mL tube provides a potent dose of vitamin B12 VITAMIN B12 100ML INJECTION -
Description
PMID 32310424
It is not approved by the FDA or any other regulatory body for human or veterinary use, and nothing in this guide constitutes guidance for human administration

It is perfectly legal for personal medical waste to be disposed in this manner [in contrast to biohazardous waste generated in a hospital or clinic].
Many UK laboratories now measure holotranscobalamin (active B12)

PMC11444426, Premature Graying of Hair: Comprehensive Review
