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The product reviews and opinions published reflect only the customers’ views and experiences. HSN does not verify or endorse such comments or claims, and is not responsible for the content provided in the reviews. Statements regarding food supplements have not been evaluated by the EFSA (European Food Safety Authority) and are not intended to diagnose, treat, cure, or prevent any disease or medical condition.
Drp |
Verified purchase
Slow-release caffeine (400mg CaffXtend™)
Caffeine
I take 1 right after waking up instead of the typical cup of coffee that gives me heartburn and its effect is smooth and linear for several hours. In contrast, coffee is immediate and in my case it gives me acidity.
Amb |
Verified purchase
Slow-release caffeine (400mg CaffXtend™)
Very good
It is the caffeine that I like the most because it takes effect soon after taking it and it is long lasting. The capsules are small, odorless and easy to swallow. Highly recommended.
Rubens |
Verified purchase
Slow-release caffeine (400mg CaffXtend™)
It is well
When you are very tired and if you are not very used to it, it is time-released.
Joel |
Verified purchase
Slow-release caffeine (400mg CaffXtend™)
Incredible
Ideal as a pre-workout or on days when you are half out of energy. The activation effect is very noticeable.
Jose |
Verified purchase
Slow-release caffeine (400mg CaffXtend™)
Portable coffee
If you want to always have a caffeine supply on hand to perform better, this is one of the best options, fast and economical.
Guillermo |
Verified purchase
Slow-release caffeine (400mg CaffXtend™)
The truth is that it works very well but...
The truth is that it works very well, but you have to have a certain tolerance to caffeine or not have consumed it otherwise. It activates you so much that you have to be careful not to have taken anything else but, well, it fulfills its function perfectly.
Susana |
Verified purchase
Slow-release caffeine (400mg CaffXtend™)
No effect
I previously took the 200mg. And they did give me energy. I bought 400mg and they give me the opposite effect. I feel very tired and they make me sleepy.
Borja |
Verified purchase
Slow-release caffeine (400mg CaffXtend™)
Effective
Very good for training days after work. Keeps you focused and awake for training.
Patricia |
Verified purchase
Slow-release caffeine (400mg CaffXtend™)
Caffeine without drinking coffee
Ideal for caffeine intake without the need for coffee, super practical for a busy day, exams or intense work.
Cesar |
Verified purchase
Slow-release caffeine (400mg CaffXtend™)
Very good
Very good results and unbeatable price. I would order it again a thousand and one times, pure caffeine.
Minimum purchase of units!