PlainVitamins

White Willow Bark

by Nature's Way · capsule · 100 capsules

  • Off the market since November 2015 (NIH)
  • UPC 0 33674 17850 8
  • DSLD label 40387
  • Serving 2 capsules
  • 50 servings

White Willow Bark by Nature's Way lists one ingredient: 800 mg of white willow per serving of 2 capsules. Its current label entered the NIH Dietary Supplement Label Database on December 29, 2014.

What is in White Willow Bark?

Each row as the label prints it, per serving of 2 capsules. 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).

White Willow Bark: Supplement Facts rows against the market (DSLD label 40387, January 2026 release)
IngredientAmount% DVAmong products listing it
Total Carbohydrates1 g1%Carbohydrate in White Willow Bark against 21,979 products1 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.1 g

74% of 21,979 products listing carbohydrate give more (median 3 g). Per day at the most servings: 2 g.

White Willow800 mgWhite Willow in White Willow Bark against 256 products800 mg per serving; the middle half of products list 80 mg to 400 mg, the median 150 mg.800 mg

Higher than 88% of 256 products listing white willow (median 150 mg). Per day at the most servings: 1,600 mg.

Source: NIH ODS Dietary Supplement Label Database, label 40387 (entered December 29, 2014), 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 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?

4 products list 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
Recommendation: Take 2 capsules twice daily, preferably with food.
Warnings
Do not use if you have an ulcer, or if you are pregnant or nursing, or if you are allergic to or have contraindications to aspirin or other salicylates. If you are taking blood-thinning or other medications, consult your healthcare practitioner before using this product.
Discontinue use two weeks prior to surgery or if stomach upset occurs.
Freshness & safety sealed with printed outer shrinkwrap and printed inner seal. Do not use if either seal is broken or missing.
Keep out of reach of children.
Caution: Keep out of reach of children. Do not use this product for children with a fever.
Do not use if you have an ulcer, or if you are pregnant or nursing, or if you are allergic to or have contraindications to aspirin or other salicylates.

Source: label statements in DSLD label 40387.

What else is on the label?

Other ingredients: Gelatin.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Nature's Way(R).

How many labels does White Willow Bark have?

2 labels are on file under this name since January 25, 2013: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 40387 (current) Entered December 29, 2014 · off the market November 9, 2015 · 100 capsules · UPC 0 33674 17850 8
  2. Label 17946 Entered January 25, 2013 · off the market December 5, 2014 · 100 capsules · UPC 0 33674 17850 8

DSLD also links this label to: White Willow (image difference, same product), Willow 400 mg (image difference, same product), Willow Bark (image difference, same product), Willow Bark (image difference, same product), Willow Bark 680 mg (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 Nature's Way Products, Inc. (manufacturer), Green Bay, WI. All Nature's Way products.

Where next?