Why these exist

I built the first one for my own shots

I started Zepbound at the end of 2024. A few months and forty-some pounds later, I was tired of the thing every GLP-1 user knows too well: a flimsy cardboard box sliding around the fridge door, and the question from anyone who opened it. "What is that?"

So I designed a case. Rigid plant-based bioplastic, sized to the exact pen, low enough to hide in the door and tough enough to actually protect what's inside. I made it for me. Then people started asking where to get one.

Everything here grew out of that. When my prescription went from one month at a time to three, I built the Dozen. When family landed on other medications, I sized cases for those too. Every product on this site started as a real problem in my own routine, which is still the only reason I make any of them.

Derek Founder, Massive Customs. Designed, printed, and shipped from Michigan.