









💡 Elevate your calm, sharpen your mind—because stress is so last season.
VitaMonk L Theanine delivers a potent 400mg dose per capsule, doubling the strength of most competitors. Made with all-natural, non-GMO ingredients and free from artificial fillers, it supports stress reduction by maintaining healthy cortisol levels while enhancing focus and mental clarity through increased alpha brain waves. Third-party tested for quality, this supplement is designed for professionals seeking calm without drowsiness and cognitive edge in a busy world.











| ASIN | B0BHR4FT1G |
| Best Sellers Rank | #105,807 in Health & Household ( See Top 100 in Health & Household ) #4,830 in Blended Vitamin & Mineral Supplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (176) |
| Date First Available | April 14, 2023 |
| Manufacturer | VitaMonk |
| Package Dimensions | 4 x 3 x 1 inches; 1.59 ounces |
K**E
Great product and value!
I love this vitamin, I use it nightly to help me sleep and relax. This is the best one I've found!
T**L
Peaceful sleep
Great product, extremely effective in i during sleep by quietly sliww mine brain chatter
P**A
Great sleep aid
Perfect way to help me sleep
J**T
Helps me get a better night's sleep! (Edit: Too bad it's causing my blood pressure to be too low)
I am editing my original review from 6/22/23 on 6/29/23. Although I'm sleeping better and better each night that I take the Theanine 400, I've also started getting frequent headaches over the last week or so, and I've been feeling lightheaded a lot, especially in the mornings. It finally occurred to me that my blood pressure might be lower than usual, so I decided to take my blood pressure this morning and discovered that it's considerably lower than my usual blood pressure. I haven't taken any other new supplements or medications besides the Theanine 400 over the last few weeks. A quick internet search clarified that L-Theanine can, in fact, lower blood pressure. And, from what I've found, Theanine 400 contains a higher dosage of L-Theanine than the average ones on the market. I'm SO disappointed to say that I will no longer be able to continue taking this great product on a nightly basis and experience the fabulous sleep that I've been enjoying lately. I will experiment with taking one capsule every few nights, and especially on nights when I really need to ensure that I sleep well, or when I'm dealing with more than the average stress level. I might also try what another reviewer suggested and pour some powder out of the capsule in order to take a lower dosage. If I can tolerate the taste of it in juice or water, I wouldn't mind doing that so I can still benefit from improved sleep quality. Low BP might not be a concern for me if I take a lower dosage on a regular basis. Time will tell! I still feel that this is a great product, and I highly recommend it. I just felt that I should caution others who might already deal with low BP if they are thinking of trying this high dosage -- and encourage those with high BP who might consider this side effect a great thing! (Original review on 6/22/23) - I've been taking this product for a couple of weeks at bedtime. I've noticed that it's been somewhat easier for me to get back to sleep during the night after getting up to empty my bladder, whereas before I would always lie awake in bed worrying about all of life's problems. I don't think the Theanine 400 actually makes me feel drowsy like a sleeping pill; it just helps to relax my mind so sleep comes easier. I haven't tried taking it during the day, since nighttime anxiety is worse than daytime anxiety, in my opinion. I really value my sleep, so it's a great tool to have in my sleep arsenal!
R**A
Good quality
This is a great product
K**H
Ok
A friend recommendation Great price
M**M
Good value for price
This is an incredible mood booster/stabilizer. Itsupposed to help the body make serotonin to balance moods and was uplifting, like all the benefits ifi 10 cups of green tea, but with no caffeine.
M**R
Better sleep!
I noticeably feel lighter after taking it. I’ve been trying to cut down on my use of melatonin, so I’ve started taking this about an hour before I go to sleep. I fall asleep quicker now and sleep for longer periods of uninterrupted sleep. My favorite part of these vitamins is that there are no artificial fillers so I know what I’m putting into my body.
Trustpilot
1 month ago
1 month ago