Smart Caffeine with L-Theanine
by NS Natural Stacks · capsule · 60 vegetarian capsules
- On the market (NIH)
- UPC 7 98295 45253 5
- DSLD label 274259
- Serving 1 to 6 capsules; amounts per 1 capsule
- 60 servings
Smart Caffeine with L-Theanine by NS Natural Stacks lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 200 mg of L-theanine and 100 mg of caffeine. Its current label entered the NIH Dietary Supplement Label Database on September 22, 2022.
What is in Smart Caffeine with L-Theanine?
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 |
|---|---|---|---|
| L-Theanine | 200 mg | Higher than 61% of 1,602 products listing theanine (median 100 mg). | |
| Caffeineas Green Coffee | 100 mg | 72% of 3,358 products listing caffeine give more (median 200 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 274259 (entered September 22, 2022), 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 one serving 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.
- Caffeine L-Theanine 100/200 mgHard Rhino same ingredients
- Caffeine + L-Theanine Capsules 100/200 mgNootropics Depot same ingredients
- L-Theanine & CaffeineNutriana same ingredients
- Energy + FocusZHOU same ingredients
- EliteEu Natural same ingredients
- Elite FocusEu Natural 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 Use: Take 1 capsule whenever focused energy is desired. Avoid use in the evening. Do not take more than 6 capsules per day.
- Warnings
- Warning: Do not use if pregnant, nursing, or under the age of 12.
- Warning: Do not use if pregnant, nursing, or under the age of 12. Consult with a healthcare practitioner before taking this or any nutritional supplement if you have or suspect a medical condition, are taking any medications, or other non-Natural Stacks dietary supplements.
- Do not use if safety seal is broken or missing.
- Keep out of reach of children.
- Do not take more than 6 capsules per day.
- Allergens and what it does not contain
- Ingredients Naturally Free of: Gluten, dairy, soy.
- Storage
- Store in a cool dry place.
Source: label statements in DSLD label 274259.
What else is on the label?
Other ingredients: Hypromellose, Silica, Microcrystalline Cellulose, Ascorbyl Palmitate.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Certified Open Source Full Label Disclosure U.S.A. manufactured in a cGMP certified facility.
How many labels does Smart Caffeine with L-Theanine have?
2 labels are on file under this name since November 21, 2016: other sizes, label designs and reformulations. The current one leads this page.
- Label 274259 (current) Entered September 22, 2022 · on the market · 60 vegetarian capsules · UPC 7 98295 45253 5
- Label 66761 Entered November 21, 2016 · on the market · 60 vegetarian capsules · UPC 7 98295 45253 5
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names NS 360, Inc. (manufacturer, distributor), Seattle, WA. All NS Natural Stacks products.