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.
Nacho |
VERIFIED OPINION
L-THEANINE POWDER
Excellent
Perfect before training for that extra focus needed for the most demanding workouts.
Efectiva |
VERIFIED OPINION
L-THEANINE POWDER
Super effective
I am preparing for a competitive examination and for studying it is the best thing there is, you keep your concentration longer and without distractions.
Gf garcía |
VERIFIED OPINION
L-THEANINE POWDER
It works!
As a person quite sensitive to caffeine I have quite a few problems when consuming (anxiety), with theanine I have completely reduced this sensation that caffeine produces in me.
María |
VERIFIED OPINION
L-THEANINE POWDER
Useful in situations of stress and wear
In situations or periods of stress and emotional or mental exhaustion, theanine can help control anxiety without producing drowsiness, clear the mind to think more clearly and feel more focused to face difficulties. The pure powder format is also a plus for those who don't want to take unwanted additives. For stress/anxiety management it may also be of interest to add the adaptogen ashwagandha, also available in pure powder form from HSN, to the supplementation routine.
Curro |
VERIFIED OPINION
L-THEANINE POWDER
The effect is really noticeable very quickly
The effect is really noticeable very quickly
Ic |
VERIFIED OPINION
L-THEANINE POWDER
Relax
It has helped me to stay more relaxed and decrease anxiety.
Uve |
VERIFIED OPINION
L-THEANINE POWDER
Good
I usually take it in conjunction with caffeine and it is a great combination as it minimizes the jitters that caffeine can give you while boosting concentration.
Agua cate |
VERIFIED OPINION
L-THEANINE POWDER
Very good
It is very good for concentration and relaxes a lot, highly recommended.
Jaime |
VERIFIED OPINION
L-THEANINE POWDER
Very pleasantly surprised.
It relaxes without producing drowsiness, but at the same time it activates you and helps you concentrate as well as makes you feel good. The benefits of coffee but without making you nervous or upset. Highly recommended.
J |
VERIFIED OPINION
L-THEANINE POWDER
good product
I notice results, I take it at night or on an empty stomach in the morning and it is effective without being exaggerated.
Minimum purchase of units!





