I honestly have never heard of Vyo-Tech but the reviews on Viraloid don't seem to be too promising over at BN. As always take the reviews with a grain of salt, but there seems to be a lot of negatives.

Also, skip buying this at GNC if you still want it. As always their "deals" are absolute scams. You can get a single bottle of this stuff for $35.90 at DPSNutrition.