There were many, many reasons we decided to reformulate. One of which was removing yohimbe as it is a very problematic ingredient (diverse bioavailability, high risk of side effects which is an issue when your customer base becomes larger and larger). After removing yohimbe, coming up with a compliant stimulant which has human data on fat loss is nearly impossible. As you well know, many companies have "fat loss" formulas which use ingredients with no actual fat loss data (long term human data which actually measures body composition rather than a single surrogate biomarker).
Also, calling it a fat loss powder is tricky from a marketing perspective because people trying to gain weight thought that they shouldn't use Alphamine, despite using pre workouts which shared the same ingredients (viewing one as a fat loss powder which wasn't conducive to their bulking goals and viewing the other as a pre workout which is fine for them to use).
Some people hate that we changed it but there are so many factors that went into the product change that they simply don't consider. These include safety, compliance, marketing, sales trends and global availability. We viewed it as an intellectually honest way of selling the product because we didn't want to follow the trend of calling something a fat loss powder if the ingredients we used only had a tenuous link to fat loss. Therefore it made sense to rebrand it completely and call it an energy drink and let customers use it as they wish.
Since we reformulated it, sales of Alphamine have gone up significantly, not just in other countries which are now able to use the same formula that we sell in the US but also in America as well.