Hey everyone. I see a lot of newer researchers asking about how to keep their vials stable over the long term and protect their investments. The main thing to remember is that lyophilized powder looks durable but it is actually quite sensitive to environmental factors like heat and moisture before you even add your bacteriostatic water. Keeping everything dry and cold is usually the safest bet for maintaining integrity across your research subjects. For short term storage while you are actively running trials a standard kitchen fridge set around four degrees celsius works just fine for most standard compounds. If you are holding onto backup vials for months down the road then putting them in the freezer is much better practice. Just make sure you let the glass warm up to room temperature completely before you pop the top off so ambient moisture does not condense inside the powder.