PlainVitamins

GABAplex With L-Tyrosine & L-Theanine

by Swanson Ultra · capsule · 60 veggie capsules

  • Off the market since July 2018 (NIH)
  • UPC 0 87614 02938 2
  • DSLD label 176340
  • Serving 1 veggie capsule

GABAplex With L-Tyrosine & L-Theanine by Swanson Ultra lists 6 ingredients, 6 with an amount per serving of 1 veggie capsule, such as 250 mg of GABA, 250 mg of L-glycine, 100 mg of L-tyrosine and 100 mg of taurine. Its current label entered the NIH Dietary Supplement Label Database on August 31, 2018.

What is in GABAplex With L-Tyrosine & L-Theanine?

Each row as the label prints it, per serving of 1 veggie 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).

GABAplex With L-Tyrosine & L-Theanine: Supplement Facts rows against the market (DSLD label 176340, January 2026 release)
IngredientAmount% DVAmong products listing it
GABA250 mgGABA in GABAplex With L-Tyrosine & L-Theanine against 744 products250 mg per serving; the middle half of products list 80 mg to 400 mg, the median 100 mg.250 mg

Higher than 66% of 744 products listing GABA (median 100 mg). Per day at the most servings: 500 mg.

L-Glycine250 mgGlycine in GABAplex With L-Tyrosine & L-Theanine against 1,078 products250 mg per serving; the middle half of products list 100 mg to 846 mg, the median 300 mg.250 mg

52% of 1,078 products listing glycine give more (median 300 mg). Per day at the most servings: 500 mg.

L-Tyrosine100 mgTyrosine in GABAplex With L-Tyrosine & L-Theanine against 1,680 products100 mg per serving; the middle half of products list 150 mg to 989 mg, the median 500 mg.100 mg

78% of 1,680 products listing tyrosine give more (median 500 mg). Per day at the most servings: 200 mg.

Taurine100 mgTaurine in GABAplex With L-Tyrosine & L-Theanine against 2,337 products100 mg per serving; the middle half of products list 110 mg to 1,000 mg, the median 500 mg.100 mg

76% of 2,337 products listing taurine give more (median 500 mg). Per day at the most servings: 200 mg.

L-Theanine50 mgTheanine in GABAplex With L-Tyrosine & L-Theanine against 1,602 products50 mg per serving; the middle half of products list 90 mg to 200 mg, the median 100 mg.50 mg

79% of 1,602 products listing theanine give more (median 100 mg). Per day at the most servings: 100 mg.

Bioperine Nature's Thermonutrient5 mgBlack Pepper in GABAplex With L-Tyrosine & L-Theanine against 2,363 products5 mg per serving; the middle half of products list 5 mg to 10 mg, the median 5 mg.5 mg

33% of 2,363 products listing black pepper give more (median 5 mg). Per day at the most servings: 10 mg.

Source: NIH ODS Dietary Supplement Label Database, label 176340 (entered August 31, 2018), 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?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • 79% of the 1,602 products that print an amount of theanine list more than its 50 mg of L-theanine (filed by NIH under theanine) (median 100 mg).

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?

1 product lists the very same ingredients; the nearest amounts come first.

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: As a dietary supplement, take one veggie capsule one to two times per day with water.
Warnings
Do not use if seal is broken.
Keep out of reach of children.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 176340.

What else is on the label?

Other ingredients: Hypromellose, Magnesium Stearate, Rice Flour, Rice concentrate, Silica.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): V Vegetarian Formula; Guaranteed purity & potency.

How many labels does GABAplex With L-Tyrosine & L-Theanine have?

One label is on file, entered on August 31, 2018.

  1. Label 176340 (current) Entered August 31, 2018 · off the market July 24, 2018 · 60 veggie capsules · UPC 0 87614 02938 2

DSLD also links this label to: GABAplex (image difference, same product), GABAplex (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 Swanson Health Products (distributor), Fargo, ND. All Swanson Ultra products.

Where next?