I don't want to get into a pissing war here. Both products work in different ways and could even be used together. Lipo is probably better to stack with ZIP! than T_rex if you can't stand stimulents. (T-rex is too intense for me -- can't handle the yohimbe)
If I had to use one, of course it would be ZIP! because the ingredients are those I recommend. But try both and see for yourself. Or use both.
BTW: Hot-Rox by Biotest is sort of a "poor mans" ZIP! Hot-Rox is 70 bucks. ZIP! is $29.
ZIP! is specifically a thyroid support supplement. All the ingredients work synergistically to get your thyroid to work at maximum output to burn more fat without suppression.
LIPOREXIN is a non stimulatory fat burner. It increases metabolic rate (most notably by EGCG), enhances lipolysis (fat burning), maintains lipolytic and energy related neurotransmitters, enhances and supports thyroid function.
It's not there. Nelson is a friend of the owner so he's telling people about it before it's available. I like the Protein Factory and this product Zip has a catchy name but it isn't even close to Liporexin.