The obvious fix is the office fridge, and I understand the logic, but it is the weakest link most Ortigas readers reach for. A shared pantry fridge is opened all day, the door shelf where a small box naturally ends up is the warmest part of the appliance, and building services occasionally cut power over long weekends without telling anybody in your department.
Set that against the compound. Reconstituted NAD+ has to be refrigerated and used within two to three weeks, which is a shorter window than the four to six weeks many peptides tolerate, and repeated warming and re-chilling is not something I would inflict on material this fragile for the sake of convenience. There is also the mundane social problem that a labelled box in a shared fridge is a conversation you probably do not want to have with your floor.
The workable version is duller and better: keep the still-insulated parcel with you rather than in a shared appliance, leave at a sensible hour, and put it in your own fridge on a middle shelf toward the back. If your day genuinely cannot accommodate that, the honest answer is that home delivery on a work-from-home day is the better plan for this compound.