thiamine and b12 injections Hydrochloride Injection 200mg Multiple Dose Vials 2 mL — Mountainside Medical Trust Armas Pharmaceuticals for superior thiamine replenishment VITACORE Vitamin B1 + B6

A quick search on the internet revealed clinics offering private treatments for people who have not necessarily been diagnosed as being vitamin B12 deficient: $30 for Five Week Wellness Package with Vitamin B6 and B12 Injections at Fit Medical Weight Loss ($150 Value) Here is a London based clinic offering Vita Boost injection injections of vitamins B12 into the body, helping keep energy levels up as well as general well being

Everything I've read can make sense in theory

Vitamin B12 is vital for the brain and blood cells

Methylcobalamin is the most easily absorbed for people who have compromised digestive systems