I got 5 vials few months ago. 3 of them crashed when I opened package. Heated up and 100% liquid as for as I can see with naked eye. Put under my bed along with my other vials of which are NPP 250 from different source which never crashed. Opened up box couple weeks later and they recrashed. Sent to friend to use. After he heated up and left in 70ish degree room, never crashed again. My home is set at 69 degrees during day/66 degrees during night.
Buddy's said he is having great results and strength on the rise.