zrtlab

[engival]

has anyone used Zrtlab before?

is there blood spot accurate? they have testosterone blood spot

 

[MuscleOlogist]

I've seen it but have been skeptical.

 

[The Matrix]

I've seen it but have been skeptical.

Ditto on that too many problems with transportation to the lab could result in false results. If it was taken at a lab and spun there no problem.