most clp vials do come with a hologram. if this was a fake clp it would be the first i've seen. although possible, i doubt its fake. the only way to tell for sure is to post up a picture.
I'll try and get a picture up later.
I've not heared of CLP fakes either and the label looks good on it. Maybe the Tren is just different and they don't bother with the hologram