Mastabol ?

i have some BD mastabol some that was manufactured in 05 and some in 06. the 05 has a blue label and the oil has a yelow tint. the stuff from 06 has a red label and the oil is much lighter in color. they both have white tops that read BD mastabol.
they are both from the same source which has been reliable in the past.
does anyone know why this is? is one possibly fake?..thanks

they may have used a different batch of oil to mix the hormone into, the color of the oil varies depending on which one is used and where you get it from.