Double Strength L-Theanine 200 mg
by NOW · capsule · 120 veg capsules
- On the market (NIH)
- UPC 7 33739 00148 1
- DSLD label 314284
- Serving 1 veg capsule
- 120 servings
Double Strength L-Theanine 200 mg by NOW lists 2 ingredients, 2 with an amount per serving of 1 veg capsule, such as 200 mg of L-theanine and 100 mg of inositol. Its current label entered the NIH Dietary Supplement Label Database on July 25, 2024.
What is in Double Strength L-Theanine 200 mg?
Each row as the label prints it, per serving of 1 veg 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 |
|---|---|---|---|
| L-Theanine | 200 mg | Higher than 61% of 1,602 products listing theanine (median 100 mg). Per day at the most servings: 400 mg. | |
| Inositol | 100 mg | Higher than 76% of 4,042 products listing inositol (median 30 mg). Per day at the most servings: 200 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 314284 (entered July 25, 2024), version 9.4.0. See the label on DSLD or its label image (PDF). 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 NIH database records 1 to 2 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
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.
- Double Strength L-Theanine 200 mg SuntheanineNOW · off the market same ingredients
- L-Theanine Double Strength - 200 mgNOW · off the market same ingredients
- L-TheanineBRI Nutrition · off the market same ingredients
- Theanine 200 mg + InositolNatural Grocers by Vitamin Cottage same ingredients
- L-Theanine 200 mgLuckyVitamin same ingredients
- L-Theanine 200 mgProtocol For Life Balance 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.
- Directions
- Suggested Usage: Take 1 capsule 1 to 2 times daily as needed, preferably on an empty stomach.
- Warnings
- Caution: For adults only. Keep out of reach of children.
- Consult physician if pregnant/nursing, taking medication, or have a medical condition.
- Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
- Allergens and what it does not contain
- Non-GMO
- Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.
- Storage
- Store in a cool, dry place after opening.
Source: label statements in DSLD label 314284.
What else is on the label?
Other ingredients: Hypromellose, Stearic Acid, Silicon Dioxide.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Triangle K (Kosher); GMP Quality Assured.
How many labels does Double Strength L-Theanine 200 mg have?
6 labels are on file under this name since July 25, 2014: other sizes, label designs and reformulations. The current one leads this page.
- Label 314284 (current) Entered July 25, 2024 · on the market · 120 veg capsules · UPC 7 33739 00148 1
- Label 244409 Entered March 25, 2021 · on the market · 60 veg capsules · UPC 7 33739 00147 4
- Label 55130 Entered January 25, 2016 · off the market February 12, 2024 · 120 veg capsules · UPC 7 33739 00148 1
- Label 55129 Entered January 25, 2016 · off the market August 8, 2023 · 60 veg capsules · UPC 7 33739 00147 4
- Label 35283 Entered July 25, 2014 · off the market February 16, 2015 · 120 veg capsules · UPC 7 33739 00148 1
- Label 35256 Entered July 25, 2014 · off the market January 8, 2015 · 60 veg capsules · UPC 7 33739 00147 4
DSLD also links this label to: Double Strength L-Theanine 200 mg Suntheanine (package size difference, same product), Double Strength L-Theanine 200 mg Suntheanine (package size difference, same product), L-Theanine Double Strength - 200 mg (package size difference, same product), L-Theanine Double Strength - 200 mg (image difference, same product), L-Theanine Double Strength - 200 mg (package size difference, same product).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names NOW FOODS (manufacturer), Bloomingdale, IL. All NOW products.