Regarding storage, mixed RU58841 solutions should be stored in a fridge, and RU58841 raw powder should be stored in a freezer to have the efficacy last for as long as possible.
Ideally, keep it away from light, sealed tight blocking out air, and in a fridge if it’s mixed, or in a freezer if it’s still in raw powder form.
I personally put my RU mixed solutions in the fridge in 50ml bottles, and my RU raw powder in a Ziploc bag sealed tight and then I put that in a little container and leave it in my freezer.
Both those drugs work by killing your DHT levels in your body, indirectly preventing hair loss because there is simply no DHT left to negatively affect your scalp. I have heard of several individuals on Finasteride or Dutasteride losing muscle, getting erectile dysfunction, feeling like shit every single day, and several other negative side effects all at the expense of saving their hair.
This is where RU completely blows everything on the market out of the water.
Within a couple weeks of using RU58841, I went from 50 hairs every shower being lost, to 1-5 hairs MAX being lost.