Bladderwrack
by Pure Herbs · liquid · 1 fluid ounce
- On the market (NIH)
- DSLD label 278744
- Serving 2 ml (abt. 1/2 tsp)
- 15 servings
Bladderwrack by Pure Herbs lists one ingredient: 1,927 mg of bladderwrack algae extract per serving of 2 ml. Its current label entered the NIH Dietary Supplement Label Database on December 13, 2022.
What is in Bladderwrack?
Each row as the label prints it, per serving of 2 ml. 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 |
|---|---|---|---|
| Bladderwrack Algae ExtractHerb: Solvent Ratio 1:7 (Distilled water & neutral grain spirits 28-38% ABV) | 1,927 mg | Higher than over 99% of 188 products listing bladderwrack (median 77.5 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 278744 (entered December 13, 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?
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:
- Its 1,927 mg of bladderwrack is higher than over 99% of the 188 bladderwrack products that print an amount.
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.
- Bladderwrack Alcohol FreeHawaii Pharm same ingredients
- Bladderwrack Sugar Free Alcohol FreeHerbal Terra same ingredients
- Bladderwrack 1,000 mgNature's Answer · off the market same ingredients
- Bladderwrack Extract 1,000 mgNature's Answer same ingredients
- Bladderwrack 1000 mgRemedys Nutrition same ingredients
- Bladderwrack Kelp PowderTerraVita Premium Collection 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
- Directions: For adults, mix 2 mL (abt. 1/2 tsp) of extract in 2 fl. oz (60 mL) water one time daily preferably with a meal.
- Shake well before use
- Warnings
- Warning: Not intended for use by pregnant or nursing women. If you have a medical condition or are taking medication, consult your doctor prior to use.
- Discontinue use and consult with your doctor if any adverse reactions occur.
- Keep out of reach of children
Source: label statements in DSLD label 278744.
What else is on the label?
Other ingredients: None.
How many labels does Bladderwrack have?
2 labels are on file under this name since November 22, 2022: other sizes, label designs and reformulations. The current one leads this page.
- Label 278744 (current) Entered December 13, 2022 · on the market · 1 fluid ounce
- Label 279178 Entered November 22, 2022 · on the market · 4 fluid ounces
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Pure Herbs, Ltd. (manufacturer), Sterling Heights, MI. All Pure Herbs products.