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.
Lucía |
VERIFIED OPINION
SMART CAFFEINE
Well
It does not hit as hard as other caffeine, but it does its job.
Aln |
VERIFIED OPINION
SMART CAFFEINE
Very useful
Also for long trips
Guille |
VERIFIED OPINION
SMART CAFFEINE
Very balanced
Very balanced caffeine, I take it after breakfast as a pre-workout, I train strength, a little cardio and I have vitality until lunchtime.
Angela |
VERIFIED OPINION
SMART CAFFEINE
Very good
Good
Les |
VERIFIED OPINION
SMART CAFFEINE
Good product
It is slightly noticeable. In my case it keeps me a little more awake and focused for 2 or 3 hours.
Daniel |
VERIFIED OPINION
SMART CAFFEINE
Good
Very good product, I work at night and this product does its job very well.
CafeÍna inteligente |
VERIFIED OPINION
SMART CAFFEINE
Activate
I use it in the morning with breakfast to be more active when studying and concentrating, and it works for me.
Marcos |
VERIFIED OPINION
SMART CAFFEINE
Good option
One capsule in the morning gives you energy for the whole morning. Good value for money.
Javi |
VERIFIED OPINION
SMART CAFFEINE
Perfect
It brings the perfect amount of caffeine for me, as I am someone who is quite sensitive to it. Its effect lasts all day without any problems
Chemita10 |
VERIFIED OPINION
SMART CAFFEINE
Gradual caffeine
I take it before a hard workout, when I don't want to drink coffee to avoid stomach problems. Very effective.
Minimum purchase of units!





