b12 injectable methylcobalamin for dogs Compounded (Vitamin B12) Injection, 5mg/mL Cyanocobalamin is a man Vitamin B12 for Pets –
Description
Vitamin C also aids the body's use of calcium and acts as an antioxidant to protect other vitamins against attack by free radicals

The process is simple: Complete a medical questionnaire

Upon birth, infants consume a lot of vitamin B12 when breastfeeding

That's not a failure of B12 that's how targeted nutrition works
