macrophage69alpha
New member
while agreeing that t3 should be taken orally, the oral bioavailability of t3 is 95% ....
so uptake dermally would not be greater. with T4 it might be (it has 30-70% uptake dependant on a variety of factors)
so uptake dermally would not be greater. with T4 it might be (it has 30-70% uptake dependant on a variety of factors)