I know this has probably been answered before but could someone explain the differences between using sterile water and b/c water for mixing the HGH?

If a person has Jinotropin and it comes with sterile water, is there any reason/need to mix with bacteriostatic water instead?

Once reconstituted, how long is the Jintropin mixed with sterile water good for when kept in the fridge?

Thanks much,
GO