BPI B4 Fat Burner 30 Capsules, 30 serving

It does not feel like anything. Seems like fake product. The label says it contains caffeine equal to 3 cups of coffee, but it does not give any kind of pre workout stimulation.

There is no magic pill for weight loss, but this definitely comes close. I take this in the morning 20 minutes before my work out, and I am stoked for 12 hours. It does take a day or two to get used to, and you might experience nausea and a wired, "cracked out" feeling in the beginning, but once that passes it's all good. It does wonders for my mood as well. After workouts, I find that I am super motivated to do things, and my focus is dead on. Eat clean and exercise, and you will see results. It may not be for everyone, but since I purchased it, I put five of my buddies up on it, and they love it. Awesome product at a great price on Amazon.

I am so amazed by this product. If you do not have a high tolerance for caffeine please eat something with this. The first day I did it without eating and I was going nuts. I got over it. At the gym I was pumping. This is my second day using it and I ate it with some food and lots of water. I feel better than the other day because of the food that I ate after I took the capsule. It actually does help you with weight loss with of course a diet and some exercise! I know it's only my second day using it but I already see the scale going down! You feel it a lot without eating but i reccomend some small food with it.

The very first time you use it you might feel a tingly/crashing sensation but it gets better. It does wonders, as it gives you energy and it helps you shred extra pounds. I wouldn't recommend taking them when you're not planning on going to the gym.

I love this stuff. I have never taken a pre-workout/thermogenic in capsule form so I was not sure what to expect, but I was pleasantly surprised. It gives me great energy for a 2+ hour workout and it makes me sweat. a lot. Would buy again.

This isn't the strongest fat burner out there and I personally am happy for that. There is a perfect middle ground for stimulant and fat burning. Good product for energy, sweats, and weight loss.

These are definitely most effective when taken on a workout day. On the days that I am not working out I dont even take it (as recommended on the bottle) because I dont find that it makes much of a difference. I take this at most 10 minutes before I work out, for me it works best to take it right before my workout because throughout the workout it helps keep my focus and energy level up. Yes, you will struggle to sleep...especially if you workout at night like I do.

One of the best thermgetics I have tried so far. Some people say they do not have any side effects from this pill but for me they suppress my appetite and give me a caffeine boost!Best to take when you have not ate anything!

So. Much. Caffeine. It honestly has too much for me, which is fine; it is what the product says it is and I tried it out at the recommendation of a friend. I wasn't much of a caffeine person before these, so it was a bit of a shock. I don't really crash after they wear off, and I enjoy using it as an alternative to preworkout some days.

great item works well for me. started with half a capsule then worked my way up to a whole one

Do research before taking Thermogenics.. Very strong supplement.

fast shipping, good product the twist on the bottle is kind of hard but thats a minor issue nothing crazy

2nd day taking it and randomly threw up at home and didn't feel anything from taking it but made me feel sick and nauseous

Wow great results

It gives me an adrenaline rush and then a migraine but only after it makes me feel like my stomach is burning to death. I took it a couple times and it felt like I had fire in my stomach so I stopped taking it. However, it does feel cleaner than other preworkouts I have tried.

Love this product!!! Gives me a lot of energy without the jiggle in my face and hands like most pre- workouts.