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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.
Cafeína larga duración |
VERIFIED OPINION
SMART CAFFEINE
Very useful
I recommend it especially for long working days, it does not have as little as the immediate one and it lasts longer.
José Reinoso Arenas |
VERIFIED OPINION
SMART CAFFEINE
Effective
It has worked wonders for my wife at work, the format is convenient, and the price is acceptable. In addition, the 120 capsule package is enough for a lot, since the daily dose is one capsule.
Eva |
VERIFIED OPINION
SMART CAFFEINE
Saves my life
Caffeine which is great for me to start the day. I take it daily since I don't normally drink coffee during the day. It activates me during the day. It's super comfortable to take and it doesn't make me feel bad. I always buy it, it is a supplement that never fails me and it is always in my house.
Llanos |
VERIFIED OPINION
SMART CAFFEINE
Great for studying
I take it to avoid the discomfort of drinking several coffees or the diuretic effect of teas and it works very well. It does not have a strong effect and holds up very well throughout the day without interrupting the night's rest.
May |
VERIFIED OPINION
SMART CAFFEINE
Ideal
Perfect substitute for coffee, ideal for exam time. We take it because we don't like the yellow tone that coffee leaves on our teeth.
Hodei |
VERIFIED OPINION
SMART CAFFEINE
Vitamin very necessary for training performance
I have been taking different ones for years and when I found this one I never had to look at another brand again. The quality is brutal.
Jose Luis |
VERIFIED OPINION
SMART CAFFEINE
It works
What I was looking for, active all morning and without a single yawn, the L-Theanine gives it the touch I need so it doesn't make me as jittery as caffeine alone usually does.
Javier |
VERIFIED OPINION
SMART CAFFEINE
Good product
Excellent to take in the morning and maintain a constant high basal energy level for the next 8 hours, without caffeine spikes after taking it and the associated side effects.
Touji |
VERIFIED OPINION
SMART CAFFEINE
Different from those with direct caffeine
Compared to the direct caffeine ones, you notice that they don't give you that two-hour spike, it's fine for long days or driving trips but not as a daily thing per se.
José |
VERIFIED OPINION
SMART CAFFEINE
Better than coffee
If you need an energy boost and the coffee of the day has not been enough, this is your product, easy and quick to drink and cheaper than coffee.
Minimum purchase of units!





