Smart Supplement Blogs
Vitamin B12 as Methylcobalamin: What It Does and Why It Matters
Methylcobalamin is the bioactive form of vitamin B12 — the one your body uses. It plays a critical role in energy production, brain health, mood regulation, detox pathways, and nerve repair. In this guide, we explain what it does, how it compares to other forms of B12 (such as cyanocobalamin), and why it’s essential for individuals with MTHFR variants. We also show you how to get it — including through transdermal patches.