"FREE" testosterone boost

[gotDOMS]

what supplements increase "free" testosterone as opposed to just total testosterone?
aside from Activate/stinging nettle and androstenetrione/6oxo, what other supps are out there today?

 

[Rodja]

Testofen and nettle are the only ones I know of that increase free test and I don't think 6-OXO increases free test, maybe total test, but not free test.

 

[Cordeen]

Some claim Avena Sativa does.

 

[Eyayo]

hypertest

 

[easymac]

Anything that contains:
nettle
avena sativa
Tongkat Ali
fenugreek/testofen


Such as:
blue up
testojack
axis ht
hyper test
paravol
hypertest

 

[gotDOMS]

how does the cycling work for activate/stinging nettle
do you have to cycle it or can you take it as long as you want?
will the effect be less if you use it for a very long time?
ive havent heard very good things about trib based and other test boosting products because they increase total test and that only helps you if you have low test levels.
activate/stinging nettle works wonders because it increases "free" test...im looking for products that are similar to activate (increase FREE test), unless i dont have to cycle activate and can keep using it for as long as i want.
any ideas?
thanks