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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.
Rurounirevan |
VERIFIED OPINION
SMART CAFFEINE
Essential
For me an essential supplement in my daily life. Not only for the extra energy but also for the activation effect. I recommend that if you stop noticing the effects do not increase the dose. Take a two-week break from caffeine and that's it.
Jin |
VERIFIED OPINION
SMART CAFFEINE
Brutal
Its effects are brutal, concentration and focus to the maximum at an unbeatable price, you notice the prolonged release of caffeine as it does not cause the downside that makes you normal caffeine after a few hours.
Natxo |
VERIFIED OPINION
SMART CAFFEINE
Top
Highly recommended supplement to be active in demanding workouts.
Gilber |
VERIFIED OPINION
SMART CAFFEINE
Concentration
Improves concentration without causing anxiety, ideal for those who need a push to go to the gym, leave the house and train.
Manel |
VERIFIED OPINION
SMART CAFFEINE
A shot of energy
A good stimulator option without gastric problems
Agenial |
VERIFIED OPINION
SMART CAFFEINE
Surprising
Turning point, mood, activity, concentration. A "shot" and training, it reacts wonderfully and effectively both in strength and aerobic.
Efectiva |
VERIFIED OPINION
SMART CAFFEINE
Perfect for study
The combination of theanine with caffeine in this ratio is perfect for use in times of exams or oppositions, because the addition of theanine reduces the feeling of nervousness typical of caffeine and also allows greater concentration if you know how to keep focused on a single task.
Javier |
VERIFIED OPINION
SMART CAFFEINE
Effective
I use it for study days, the 100mg makes you active without getting too nervous so it's great for starting in the morning with a good level of concentration.
Yvr |
VERIFIED OPINION
SMART CAFFEINE
I have not noticed any major effects
I bought it to study and it is somewhat noticeable but not too much.
Borja |
VERIFIED OPINION
SMART CAFFEINE
Great caffeine supplement
This is the best caffeine supplement I have ever taken. The combination of caffeine with L-Theanine makes you feel calm and energized. Highly recommended for days with low energy levels.
Minimum purchase of units!





