not unless its gonna be a long time until you convert it. but it wont hurt it to keep it cold, if nobody is gonna trip off em might as well stick em in the fridge. otherwise dont think twice about it.
my guess is that some suppliers ship all their hormones in ice packs. I have kept both fina and component at room temp for several months without them turning to mush or other harmful results. Some of us have a small problem with keeping things like that in the fridge!