Here's the problem: In this highly competitive category, disclosure of even a portion of our formula makes us more vulnerable to knockoffs, etc. While I respect the validity of your request and mean no disrespect, it is not dissimliar to asking Coca Cola for how much sugar is in their secret formula because you're a diabetic.
Directionally speaking, Black Cats are very strong and have an acute, long-lasting effect. Not knowing the nature of your "stim sensitivity" (does that mean you get heart palipatations, get panic attacks or just get uncomfortable jitters) it's tough to recommend it or not; but based on your concern, I always say err on the side of caution - they might not be for you.
The closest I can come to answering your question is this: Based on the average caffeine content shown on 3 different web sites for an 8 oz cup of regular coffee, one capsule has approximately the same amount of caffeine as 1.5 cups. That should give you a range to work with at least. Sorry I can't be more specific - I hope you understand.
One last thing - Black Cats also contains two absorption aids: Bioperine and Naringin. These both reduce the stimulant "spike" and slow the metabolization / utilization of the stimulants so on a mg per mg basis, Black Cats are much smoother and less "stimmy" than other products that just contain raw caffeine. So even with the caffeine info you're still not necessarily comparing apples to apples.
As long as you don't have a serious health issue, you may want to give them a try. Obviously start with just one capsule. Free samples can be requested off our web site.
I hope you found this helpful -
Don
PS. We do have people break open capsules all the time. And yes, it will kick in faster if you do it that way, not to mention a less-than-desireable taste. I don't recommend it as it won't give you an accurate assessment as to how a full capsule will feel. FYI they do not kick as hard if taken with food.
