vitamin b12 injection red Liquid Medication Vial for Health Boosts Stock Illustration NOW Foods B-12 10,000mcg Shots

Consider periodic blood tests to check hormone levels, liver, and kidney function during use

Increased Longevity: NAD+ plays a role in maintaining cellular health, and studies show it can help increase lifespan

Johnson, M., et al

The vitamin B12 that I use is preservative free and highly absorbable methylcobalamin

Common side effects: Injection site discomfort Mild diarrhea Hot flashes Dizziness or itching Precautions: Avoid B12 injections if youre allergic to cobalt or have Lebers hereditary optic neuropathy

A healthcare provider injects a concentrated form of vitamin B12 into the muscle, bypassing the need for absorption through the digestive system