just dont buy it in liqud its not stable for very long and likely already unstable once you get it in mail... if pill its fine.
Prami is stable in liquid and pill so its easier to get and store, personally i usually rec prami due to this, easy and does the job and i can get it with my other cycles ancillaries from one place .
rui has prami also BTW.
just avoid places selling caber in liquid at all costs. they either dont know any better or dont care, which is both bad reasons...