Clinics charge as much as $250 per B12 shot. We charge as little as $3.
And thanks to Comfort-in™, you can now do it needle-free :)

Vitamin B12 Tests & Deficiency Diagnosis

The Active-B12 Test (Holotranscobalamin)

Learn what active-B12 (holoTC, or holotranscobalamin) is, and why we recommend the active-B12 test over the current serum B12 test.