Added to Cart
Cart Total:
Customers Also Bought:
24/7 Help

Doctor's Best, Suntheanine L-Theanine, 150 mg, 90 Veggie Caps


Thank you!

Your email is being processed.

Doctor's Best, Suntheanine L-Theanine, 150 mg, 90 Veggie Caps

Click to zoom
Shipping Saver ?
Our Price:
You Save:
zł49.18 (45)

Sorry, this product is no longer in stock.

Earn 5% Loyalty Credit ?

Doctor's Best, Suntheanine L-Theanine, 150 mg, 90 Veggie Caps

In Stock
  • Expiration Date: 08/2019
  • Shipping Weight:
    0.06 kg
    Switch to Imperial units
  • Product Code: DRB-00197
  • UPC Code: 753950001978
  • Package Quantity: 90 Veggie Caps
  • Dimensions:
    10.2 x 5.3 x 5.3 cm , 0.05 kg
    Switch to Imperial units
Combo Offer!
Order now and pay only zł54.56 for:

Sorry, this product is no longer in stock.

Product Overview


  • Science-Based Nutrition
  • Dietary Supplement
  • Helps Promote Relaxation without Drowsiness
  • Helps Reduce Stress and Tension
  • Vegan

Suntheanine is the premier, patented form of the amino acid L-theanine. Suntheanine is the purest form of L-theanine on the market today. L-theanine is an amino acid derived from green tea that is responsible for the relaxation-inducing effect of tea consumption.

  • Helps promote a relaxed state without drowsiness.
  • Helps ease stress and everyday nervous tension.
  • Helps promotes a healthy mood and alertness.

Suggested Use

Suggested Adult Use: Take 1 capsule daily away from food, or as recommended by a nutritionally-informed physician.

Other Ingredients

Microcrystalline cellulose, modified cellulose (vegetarian capsule)

Non-GMO, gluten-free, vegan


Store in a cool dry place.

Supplement Facts
Serving Size: 1 capsule
Serving Per Container: 90 servings
  Amount Per Serving %Daily Value
Suntheanine L-theanine 150 mg
†Daily Value not established.
iHerb Customer Reviews

Amazing, I love it

Posted by iHerb Customer on Nov 21, 2017 | Verified Purchase

Works great! Fast shipping, great packaging, A++ for the service.

Thanks for your feedback!

It Doesn’t Work For Me

Posted by iHerb Customer on Nov 10, 2017 | Verified Purchase

I don’t feel focused, I still have anxiety.

Thanks for your feedback!

Definitely worth trying

Posted by iHerb Customer on Nov 07, 2017 | Verified Purchase

I have found this product very helpful with my sleep. For me, I find it best works if I wake up in the middle of the night and cannot get back to sleep. I take one of these and very shortly you can begin to feel its effects and I drop off back to sleep. It also had the affect of making my dreams very lucid.

Thanks for your feedback!

Amazing product

Posted by iHerb Customer on Nov 01, 2017 | Verified Purchase

I've been taking this every morning without food for the past few weeks and so far it seems to have a great effect (some might be placebo, but either way I feel great). I often get very anxious and irritable and this seems to get my morning started on a great note. I feel a lot more alert, not as stressed, without feeling drowsy. Also is great to combine with caffeine for an extra punch for great focus when I need to work! LIN 01 26 :)

Thanks for your feedback!

Toimiva tuote

Posted by iHerb Customer on Oct 31, 2017 | Verified Purchase

Olen käyttänyt 1 kaps./vrk (150mg) silloin tällöin (1-5 päivää viikossa). Vaikutus on mukavan lievä, mutta selvästi havaittava. Tyynnyttää rauhatonta mieltä eli auttaa keskittymään ja rauhoittumaan. Ja ei todella tee puutunutta tai väsynyttä oloa, päinvastoin eli valveilla ollessa aistit toimii jopa normaalia paremmin ja käyttöä seuraavan yön olen aina nukkunut hyvin. Vaikutus alkaa melko pian, ruokailujen välissä otettuna, tunnen vaikutukset jo 0,5...1 h kapselin ottamisesta. Koen myös joidenkin lihaskireyksien helpottaneen hieman, mutta en ole varma johtuuko se pelkästään tästä tuotteesta. Joka tapauksessa, itselläni toimii, ei mitään huuhaata.

Thanks for your feedback!