Personally, I've never found transepidermal fat loss products to be so promising, but upon doing some research today, I found the following that I thought I might bring to light for anybody who might like to contribute to the issue:
"A second, more indirect, mechanism by which Yohimbine can aid lipolysis via the adrenergic system is by increasing peripheral blood flow (11, 12). Adipose tissue is known to have rather poor vascularity. When triglycerides are broken down into free fatty acids and glycerol during lipolysis, they must also be transported away from the fat cell or they risk being reincorporated into adipose tissue. Beta receptor activation causes vasodilation, thus increasing blood flow, however, it does not increase enough to remove all of the free fatty acids released during lipolysis (13). Alpha 1 and 2 receptor activation, on the other hand, causes a decrease in blood flow (4, 14). Thus, antagonism of the alpha 2 receptor with yohimbine would be expected to increase blood flow, and thus increase the mobilization and disposal of these FFA's, further aiding fat loss. And, again, the more we can get in the adipose tissue without it reaching the heart and CNS, the better."
(taken from http://www.bodybuilding.com/fun/par6.htm)
Awhile back, when I never really took the time to research such supplements, I purchased "Cutting Gel" just to see if it would work....well low and behold it was a waste of 45 bucks. I am, of course, very skeptical on the actual success accompanied with using such products, but am making this post to see what a more knowledgable data base may yeild for answers. I'm just looking for some input guys, and maybe a little board discussion, I know this isnt gear related but it interests me nonetheless. IMO, spot fat loss is BS, unless somebody can convince me otherwise; I'm one to believe a strict regimen of diet and exercise can only actually decrease %bf (with spot reduction being impossible). Thanks guys, I'm lookin forward to hearing from you.