We are sure that HSN® is your best purchase option and that is why we want to answer any questions you may have.
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.
Alma |
VERIFIED OPINION
SMART CAFFEINE
Well
Keeps you focused on tasks without distractions by keeping you wide awake and alert. It is less potent than time-release caffeine anhydrous.
Adrian |
VERIFIED OPINION
SMART CAFFEINE
Well
It is quite effective and the effect lasts for quite a long time, which is appreciated before doing sports.
Rosa |
VERIFIED OPINION
SMART CAFFEINE
Acceptable
Acceptable results, but there are products with greater adrenergic activation. The effects are very mild and imperceptible in some cases.
Gabriel |
VERIFIED OPINION
SMART CAFFEINE
Good effect
Slower release than the normal ones, I recommend using the normal caffeine ones by splitting them and spacing the intakes to achieve the same effect as with these for a lower price.
Carlos |
VERIFIED OPINION
SMART CAFFEINE
Activation
Good sensations after a week of use. I use it on specific days of hard work taking it around 7am and during the day I don't feel the occasional fatigue or the desire to take a nap after a midday meal and then I have not had any problems sleeping around 10pm at night.
Adrián |
VERIFIED OPINION
SMART CAFFEINE
I need to try more
I bought it for long car trips and study days. The times I've used them they seem to have done their job.
Montse |
VERIFIED OPINION
SMART CAFFEINE
Fulfills its function
It works great for me, since coffee is bad for me and I can't drink it. I've been buying them for a long time and I not only use them in the morning, but also before training.
Juan Antonio |
VERIFIED OPINION
SMART CAFFEINE
It does its job
It is a plus when doing sports, I take it for my long-distance cycling training.
Joaquín |
VERIFIED OPINION
SMART CAFFEINE
The best choice for long cycling or trail running runs
I used to take caffeinated gels, but it is much better to take the capsules separately, and combine it with HSN's homemade isotonic drink with malto and fructose.
Juanito |
VERIFIED OPINION
SMART CAFFEINE
Very good
For those who want pills without too much caffeine, ideal option, since they only have 150mg per intake, but it is noticeable from the first moment, and as it continues for a longer time the slow release. In terms of taste, a normal pill, no more.
Minimum purchase of units!





