PlainVitamins

Tang Kuei Plus

by Herbalife · tablet or pill · 60 tablets

  • On the market (NIH)
  • UPC 0566US
  • DSLD label 202183
  • Serving 1 tablet
  • 60 servings

Tang Kuei Plus by Herbalife lists 3 ingredients, 3 with an amount per serving of 1 tablet, such as 8 mg of vitamin C, 200 mg of tang kuei root extract and 30 mg of passionflower extract. Its current label entered the NIH Dietary Supplement Label Database on September 24, 2019.

What is in Tang Kuei Plus?

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

Tang Kuei Plus: Supplement Facts rows against the market (DSLD label 202183, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid8 mg9%Vitamin C in Tang Kuei Plus against 18,583 products8 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg8 mg

96% of 18,583 products listing vitamin C give more (median 100 mg). Per day at the most servings: 24 mg.

Tang Kuei root extract200 mgDong Quai in Tang Kuei Plus against 307 products200 mg per serving; the middle half of products list 50 mg to 250 mg, the median 120 mg.200 mg

Higher than 68% of 307 products listing dong quai (median 120 mg). Per day at the most servings: 600 mg.

Passionflower extract30 mgPassionflower in Tang Kuei Plus against 562 products30 mg per serving; the middle half of products list 40 mg to 200 mg, the median 100 mg.30 mg

78% of 562 products listing passionflower give more (median 100 mg). Per day at the most servings: 90 mg.

Source: NIH ODS Dietary Supplement Label Database, label 202183 (entered September 24, 2019), 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:

  • 96% of the 18,583 products that print an amount of vitamin C list more than its 8 mg of vitamin C (median 100 mg).

The NIH database records 3 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 Tang Kuei Plus'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
Recommended use: Take 1 tablet 3 times per day.
Warnings
Contains soy and wheat.
Notice: Not recommended for pregnant or lactating women.

Source: label statements in DSLD label 202183.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, modified Food Starch, Stearic Acid, Croscarmellose Sodium, Magnesium Stearate, Silicon Dioxide, Sodium Carboxymethylcellulose, Dextrin, Dextrose, Soy Lecithin.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Strictly Kosher Rabbi S. D. Krausz Vaad Hakashrus D’Udvary.

How many labels does Tang Kuei Plus have?

3 labels are on file under this name since December 23, 2011: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 202183 (current) Entered September 24, 2019 · on the market · 60 tablets · UPC 0566US
  2. Label 38660 Entered October 27, 2014 · off the market September 14, 2018 · 60 tablets · UPC 0566US
  3. Label 2759 Entered December 23, 2011 · off the market October 8, 2014 · 60 tablets · UPC 0566

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Herbalife International of America, Inc. (manufacturer, distributor), Los Angeles, CA. All Herbalife products.

Where next?