It's up to you bro.... did your source say anything?
As far as the worst thing that could happen, how does a painfull death after your body becomes disconfigured beyond recognition and you are alienated from friends and family sound?
Seriously though, I would think an infection/abscess would be the worst thing.
Like I said though, there could be lucky and it could actually contain real ingredient even if it is not really cyctahoh.
Finally, it is only my opinion that cyc's do not come in vials, only amps.... I know lots will concur but I AM NOT AN EXPERT.