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.
Soni |
VERIFIED OPINION
L-THEANINE 250mg
Recommended
Easy-to-swallow capsules
Bush87 |
VERIFIED OPINION
L-THEANINE 250mg
Excellent
Great before training combined with caffeine and tyrosine
Marc |
VERIFIED OPINION
L-THEANINE 250mg
Surprisingly very useful
I was surprised by its effect. I did not have much faith. Combined with caffeine (there are articles in Elsevier) I have found it very useful. It has improved my reaction times. It has increased the length of time intervals when I can be extremely attentive to something.
Hp |
VERIFIED OPINION
L-THEANINE 250mg
Good
Good value for money
Nestorst |
VERIFIED OPINION
L-THEANINE 250mg
Pre-workout basics
Together with caffeine it is a great pre-workout. It helps you to be focused for training. It can also help you to study or work improving your concentration.
David |
VERIFIED OPINION
L-THEANINE 250mg
Mental support
It helps me to both relax and be more focused by taking just one capsule.
Rc |
VERIFIED OPINION
L-THEANINE 250mg
Perfect for relaxation
Perfect for relaxing the negative sensations of caffeine and relaxation in the evening.
Franico |
VERIFIED OPINION
L-THEANINE 250mg
Top concentration.
Highly recommended for concentration and focus. Combines well with caffeine.
Srk |
VERIFIED OPINION
L-THEANINE 250mg
Very effective
I have been consuming theanine along with caffeine for years, it helps me to stay focused, and at the same time helps in times of stress, I have not stopped taking it since I tried it many years ago to study. In addition, in capsules it is super easy to take.
Paolo |
VERIFIED OPINION
L-THEANINE 250mg
Good
At night with melatonin and valerian or even with pre-workout due to its synergy with caffeine.
Minimum purchase of units!





