Undecylenic Acid
by Swanson Premium Brand · capsule · 60 veggie capsules
- Off the market since December 2023 (NIH)
- UPC 0 87614 11655 6
- DSLD label 178166
- Serving 1 veggie capsule
Undecylenic Acid by Swanson Premium Brand lists 3 ingredients, 3 with an amount per serving of 1 veggie capsule, such as 20 mg of calcium, 100 mg of betaine HCl and 200 mg of calcium undecylenate. Its current label entered the NIH Dietary Supplement Label Database on June 25, 2018.
What is in Undecylenic Acid?
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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Calciumas Calcium UndecylenateCalcium (Form: from Calcium Undecylenate) | 20 mg | 2% | 91% of 17,831 products listing calcium give more (median 115 mg). Per day at the most servings: 40 mg. |
| Betaine HCl | 100 mg | Higher than 60% of 914 products listing betaine hydrochloride (median 50 mg). Per day at the most servings: 200 mg. | |
| Calcium Undecylenate | 200 mg |
Source: NIH ODS Dietary Supplement Label Database, label 178166 (entered June 25, 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:
- 91% of the 17,831 products that print an amount of calcium list more than its 20 mg of calcium (2 rows of the label added together) (median 115 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?
The products whose ingredient lists overlap most with Undecylenic Acid's, rare ingredients counting for more.
- Betaine HydrochlorideBioAnue 1 shared, 72% alike
- Betaine HCL 300 mgHigher Nature · off the market 1 shared, 72% alike
- Betaine HCl 400 mgPhysioLogics · off the market 1 shared, 72% alike
- Betaine HClProThera 1 shared, 72% alike
- Gastric Acid Defense Betaine HCl, 648 mgDrFormulas 1 shared, 72% alike
- PreGestionSeeking Health 1 shared, 72% alike
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 food and water.
- Warnings
- Do not use if seal is broken.
- Keep out of reach of children.
- Warning: Do not take this product if you are pregnant or nursing.
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 178166.
What else is on the label?
Other ingredients: Rice Bran, Vegetable Capsule, Silica, Rice Extract.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): V Vegetarian formula.
How many labels does Undecylenic Acid have?
One label is on file, entered on June 25, 2018.
- Label 178166 (current) Entered June 25, 2018 · off the market December 5, 2023 · 60 veggie capsules · UPC 0 87614 11655 6
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 Premium Brand products.