Bests & Worsts Reviews from Amazon

I've been using Stud100 for a few years. But it numbs too much. So I thought I would try one of the premium brands. I can't tell the difference between Duration and Stud. I think the extra cost is just big company profits. So i looked at the ingredients for each product and they're exactly the same, except that Duration contains the chemical: Ethoxydiglycol. I googled that stuff and it's used by a lot of cosmetic companies to make their products feel and smell better. It costs pennies per bottle. So, basically, Duration and Stud100 look like the same product. Except one of them is a rip off.