Suntheanine L-Theanine 150 mg
by Doctor's Best · capsule · 10 veggie caps
- On the market (NIH)
- UPC 7 53950 00236 4
- DSLD label 25543
- Serving 1 capsule
- 10 servings
Suntheanine L-Theanine 150 mg by Doctor's Best lists one ingredient: 150 mg of suntheanine L-theanine per serving of 1 capsule. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2013.
What is in Suntheanine L-Theanine 150 mg?
Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Suntheanine L-Theanine | 150 mg | Higher than 55% of 1,602 products listing theanine (median 100 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 25543 (entered September 25, 2013), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
6 products list the very same ingredients; the nearest amounts come first.
- TheanineNatrol same ingredients
- L-Theanine With Suntheanine 150 mgDoctor's Best · off the market same ingredients
- L-Theanine 150 mgBluebonnet · off the market same ingredients
- SunTheanine 150 mgTomorrow's Nutrition same ingredients
- L-Theanine 150 mgSolgar same ingredients
- L-Theanine 150 mgBIOVEA same ingredients
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Warnings
- Suggested Adult Use: Take 1 capsule daily, away from food, or as directed by a health care professional.
Source: label statements in DSLD label 25543.
What else is on the label?
Other ingredients: Rice powder, Vegetable Capsule.
How many labels does Suntheanine L-Theanine 150 mg have?
2 labels are on file under this name since August 23, 2013: other sizes, label designs and reformulations. The current one leads this page.
- Label 25543 (current) Entered September 25, 2013 · on the market · 10 veggie caps · UPC 7 53950 00236 4
- Label 25017 Entered August 23, 2013 · off the market May 2, 2016 · 90 veggie caps · UPC 7 53950 00197 8
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Doctor's Best, Inc. (distributor), San Clemente, CA. All Doctor's Best products.