how do you store a peyote button? its already dried, in a baggie. i dont know how long though. dont know when itll be used. gotta figure out the perfect setting.
Mescaline seems to be a pretty stable chemical, so I wouldn't worry too much. Just keep it away from extreme or prolonged heat, humidity, and light. It's nowhere near as sensitive as LSD, but basic precautions should keep you from losing any potency.