My Protein Pro Caffeine Supplement, 200 mg, 200 Tablets

Great item. I usually take 400mg after getting drunk the last evening and it keeps me going through the day. As a warning however do not take more than 400mg per day, as not only is it dangerous to take this much and bad for your heart, you will also experience severe nausea and in some cases you will be vomiting several times. 400mg is the definite sweet spot!

Does exactly what I wanted it to do. I have the benefit of a caffeine energy boost and no coffee(my usual source) side effects. I take one a day and it's enough to get through the work day. No stomach problems or teeth staining. Great value.

Pretty good caffeine pills. They keep you awake for an hour or 2-3, sharply. however, effect after 30 min

I bought these supplements to help me perform better during my workouts. I do a mixture of HIIT and lifting weights. I certainly feel more motivated and energetic after taking one of these. I don't get any stomach upset or jitteriness like I do with coffee.It's hard to say if I actually do train better/harder after taking one of these, but training certainly feels a little easier.I'd be careful with these - taking more than 1 could make you feel quite unwell.I've given these 4 stars just because the pills don't taste very pleasant. That's not really a problem if you swallow them quickly with a drink of water. Just don't leave them in your mouth for too long.

This works pretty well actually it’s helped me reduce my coffee intake

Tastes a bit funky but that’s just the caffeine taste. Does a good job

I don't drink coffee so I take half of one of these when I need that caffeine pick up!

I got only a very small effect even with 2. Don't work for me like the Mobu ones do.