PlainVitamins

L-Theanine Liquid

by NuMedica · liquid · 2 fl. Oz.

  • On the market (NIH)
  • UPC 8 12527 01307 0
  • DSLD label 213570
  • Serving 40 drops (2 droppers)
  • 30 servings

L-Theanine Liquid by NuMedica lists 3 ingredients, 3 with an amount per serving of 40 drops, such as 200 mg of L-theanine, 40 mg of chamomile (matricaria recutita) (flower) extract and 12.5 mg of stevia (stevia rebaudiana) (leaf) extract. Its current label entered the NIH Dietary Supplement Label Database on January 25, 2020.

What is in L-Theanine Liquid?

Each row as the label prints it, per serving of 40 drops. 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).

L-Theanine Liquid: Supplement Facts rows against the market (DSLD label 213570, January 2026 release)
IngredientAmount% DVAmong products listing it
L-Theanine200 mgTheanine in L-Theanine Liquid against 1,602 products200 mg per serving; the middle half of products list 90 mg to 200 mg, the median 100 mg.200 mg

Higher than 61% of 1,602 products listing theanine (median 100 mg). Per day at the most servings: 400 mg.

Chamomile (Matricaria recutita) (flower) extract40 mgGerman Chamomile in L-Theanine Liquid against 197 products40 mg per serving; the middle half of products list 42 mg to 179 mg, the median 75 mg.40 mg

75% of 197 products listing german chamomile give more (median 75 mg). Per day at the most servings: 80 mg.

Stevia (Stevia rebaudiana) (leaf) extract12.5 mgStevia in L-Theanine Liquid against 754 products12.5 mg per serving; the middle half of products list 10 mg to 100 mg, the median 44 mg.12.5 mg

69% of 754 products listing stevia give more (median 44 mg). Per day at the most servings: 25 mg.

Source: NIH ODS Dietary Supplement Label Database, label 213570 (entered January 25, 2020), 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 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?

The products whose ingredient lists overlap most with L-Theanine Liquid's, rare ingredients counting for more.

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
Directions: Take two droppers (40 drops) 1-2 times per day mixed in water or as directed by your healthcare practitioner.
Warnings
Caution: Keep out of reach of children.
Allergens and what it does not contain
Does Not Contain: Milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soy, artificial colors, sweeteners or preservatives.
GF Gluten-free
Storage
Storage: Keep tightly closed in a cool, dry place.

Source: label statements in DSLD label 213570.

What else is on the label?

Other ingredients: purified Water, Vegetable Glycerin, Gum Arabic, natural Lemon flavor, Malic Acid.

How many labels does L-Theanine Liquid have?

One label is on file, entered on January 25, 2020.

  1. Label 213570 (current) Entered January 25, 2020 · on the market · 2 fl. Oz. · UPC 8 12527 01307 0

DSLD also links this label to: L-Theanine Liquid Natural Lemon Flavor (image 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 NuMedica LLC (distributor), Tulsa, OK. All NuMedica products.

Where next?