Ok My fina conversion is done... gee hardest part was the overnight wait.. LOL

So I am going to order about 50 grams of Decca, Test E and C, EQ, Drol, Bol, Anavar, Winnie, and tren powder, and I have a case of 10 gram conversion kits on the way as well.

Whats the shelf life on the powders before they loose potency? Can they be stored in a vaccu sealed container and made to last longer?