My first purchase was from a higher priced source & the product arrived in an insulated bag & ice pack (shipped from Texas). That product worked great. Then I tried 2 other sources (both from Florida), priced much lower, & they both arrived in just bubble wrap (not insulated nor cold). They both seemed to be less effective. Coincidence? Or is this "you get what you pay for"?
Maybe I'm wrong but I thought pt-141 became "sensitive" after reconstitution, & then needs to be refrigerated. Is the lyophilized powder subject to temperature changes too?
P.S. All were 10mg vials of lyophilized powder