the "premixed" means that it's mixed with 1ML of water. the powdered hucog is not. if you're doing shots, a vial of 2000 will last you at least 9 days (you generally lose one dose with mixing).
I have extra vials of 2000 iu Hucog Premixed that I'm looking to sell. I'll mail Priority Mail with confirmation so it should be there within 3 business days if you are in the US