Hi all - I have just received a vial of sust 250 - the label has been removed (apparently British Dragon brand) so theres no easy identification in the post BUT can I do some sort of test to make sure it is what its meant to be?

Im assuming there isnt apart from using it but it just iClick image for larger version.  Name: IMG_0187.JPG  Views: 223  Size: 87.4 KB  ID: 155106ncase anyone can help.

Thanks