I'll preface by saying I've been jonesing to try out a transdermal for a long time, probably owing to using DMSO on livestock as a kid.
Today, while randomly checking out Google Scholar, I came across this study:
Transdermal Delivery of Highly Lipophilic Drugs: In Vitro Fluxes of Antiestrogens, Permeation Enhancers, and Solvents from
Basically, they used 9:1 propylene glycol and lauric acid mixture and it had a vastly improved transdermal delivery over either one alone, or against DMSO. This was in vitro mind you.
However, I'm intrigued enough to consider cooking some up, if and when I get the funds to gather all the supplies.
I'll probably use it for a very light tren only cycle, but I might try it with test prop. I'll keep y'all informed if I ever get around to this, especially when I get my recipe figured out.