"Classic" T3-uptake or THBR tests are typically influenced ... have grossly abnormal binding proteins (congenital TBG high or low, familial dysalbuminemic hyperthyroxinemia (FDH), thyroid hormone ...

Another problem is that my hair usually takes at least a few hours to air dry due to its low porosity. The T3 Aire IQ seems made for blowouts, so I tried one. I was actually mind-blown.