Here is the part I would underline for readers in this district specifically. When transit stops being the problem, people stop thinking about temperature entirely, and on NAD+ that is exactly the wrong conclusion to draw from a short courier leg.
The compound degrades quickly at room temperature. Cold-chain shipping is required rather than preferred, and once reconstituted the vial has to be refrigerated and used within two to three weeks, against the four to six weeks many other peptides tolerate. A twenty-minute ride does not extend that window by a single day.
So the Mandaluyong operating list is short and boring. Middle shelf toward the back of the fridge rather than the door, where the temperature swings every time somebody wants a drink. Know your building brownout pattern before you commit to a loading block, because an overnight outage leaves no mark on a vial. Buy what you will use inside a month rather than bulk-buying for a unit discount you will end up binning. And do not treat a nearby vial as a portable one: the short-ride convenience of this district tempts people into carrying material around, which undoes the only advantage they started with.