Description
The vitamin B12 pen from Lavi MD is a subcutaneous dual-compound injection pen that delivers Vitamin B12 with NAD⁺ for higher bioavailability than oral supplements, helping support cellular energy, neurological function, cognitive clarity, and overall vitality. Designed for adults focused on advanced wellness, longevity, and biohacking, it offers a physician-reviewed, lab-compounded option for those seeking a higher-potency delivery method to address fatigue, mental fog, metabolism, and age-related decline. Below, you’ll see how the NAD⁺ & B12 pen works, what benefits it targets, how dosing and injection technique are handled, and why a physician-formulated, 503A-compounded product matters for safety, purity, and consistent results.
Restore energy and mental clarity with a powerful combination designed to support cellular function and overall vitality. NAD⁺ & B12 helps promote energy production, cognitive performance, and healthy metabolism while supporting focus and daily wellness. Experience sustained energy, improved mental sharpness, and enhanced overall well-being.


Rebecca L. –
Dr. Sass’s educational resources answered several questions I had before purchasing. Everything from checkout to delivery was seamless.
Vanessa P. –
The reusable pen is so much more convenient than what I was using before. Everything arrived quickly and looked very professional.
Trevor M. –
Fast shipping and premium packaging.
Marcus E. –
Couldn’t be happier.
Caleb J. –
Excellent quality!
Kimberly F. –
I’ve used other injection pens before, and this one is by far my favorite. It feels sturdy, works smoothly, and the presentation is top notch.
Monica T. –
I appreciated Dr. Sass’s educational guidance before ordering. It made me feel much more informed, and the pen itself is incredibly easy to use.
David R. –
Super easy to use. Great experience overall.