grow prep sends the product in its freeze dried form,in its freeze dried forem it is very stable ,thats what freeze dried means ,so the sources get it in its freeze dried form and then they add the BA before sending it to the customer and MR sends it overnight in an insulated box with a lce pack,i got it the next day and the pack was still cold ,thye also send all the med.info on the product and it should be kept in your refrigeraters frezzer wich is -15 degrees ,i have been useing it and it is doining what its supposed to do ,i am useing 30mcg.per day ,once a day ,i am on day nine and already see results ,do not expect big results although it works better if combined with aas,it should be used for long term use that way lets say in a year you could have put on a total of anyware from 15 - 30 lbs.thats why you see the pros getting bigger each year,you also will get better results if you use slin along with it since the slin keeps it circulating in the bllod stream for much longer a period of time ,i also know of some bros trhat are getting it from another source and are quite happy with the results ,but this product has to be used for long periods of time at one month on and one month off