Transdermal absorption %

[Essex boy]

What % of the active ingredient in transdermal PH's do you think actually make it through the skin?

I,m guessing probably less than 50%.

On top of that we have to consider that for PH's which need a conversion to take place such as 4 AD to testosterone the rate of conversion could be correspondingly low.

So for example if I applied 40mgs of 4 AD twice a day (=80mgs)actual 4 AD absorbed could be only 40mgs. If only 50% of this then converts to test, then I am getting an extra 20 mgs of test a day which = 140mgs a week.

 

[gmarcus]

I use the 40% estimate for BDC transdermals. 4AD has some intrinsic activity although its not publicised for good reasons.
The conversion rate for 4AD to test is ~15% but again don't assume it doesn't work unless it converts.