Purple Defense
by Dr. Mercola Premium Supplements · capsule · 90 capsules
- Off the market since May 2017 (NIH)
- UPC 8 13006 01133 4
- DSLD label 35211
- Serving 1 capsule
- 90 servings
Purple Defense by Dr. Mercola Premium Supplements lists 6 ingredients, 2 with an amount per serving of 1 capsule, such as 100 mg of japanese knotweed root extract and 50 mg of resveratrol; 4 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on July 25, 2014.
What is in Purple Defense?
Each row as the label prints it, per serving of 1 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 |
|---|---|---|---|
| Purple Defense Proprietary Blend | 400 mg | ||
| organic Black Currant | in the blend, no amount given | ||
| Grape seed extract | in the blend, no amount given | ||
| Grape skin extract | in the blend, no amount given | ||
| organic Plum fruit extract | in the blend, no amount given | ||
| Japanese Knotweed root extractJapanese Knotweed root extract PlantPart: root Note: standardized 50% natural resveratrol | 100 mg | 52% of 269 products listing hu zhang give more (median 150 mg). | |
| Resveratrol | 50 mg | 45% of 1,123 products listing resveratrol give more (median 50 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 35211 (entered July 25, 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; 4 ingredients sit inside a blend, so their amounts cannot be compared.
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?
The products whose ingredient lists overlap most with Purple Defense's, rare ingredients counting for more.
- Purple DefenseDr. Mercola · off the market 4 shared, 77% alike
- Purple Defense with ResveratrolDr. Mercola 4 shared, 77% alike
- Res-Ver-A-TroxGarden Greens 3 shared, 56% alike
- Resveratrol GoldNutriGold · off the market 3 shared, 56% alike
- Resveratrol Gold 500 mgNutriGold 3 shared, 56% alike
- Grape Seed Extract 325 mgReserveage Nutrition 3 shared, 56% 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 for adults, take 1 capsule per day. Children 4 years and over as directed by physician.
- Warnings
- WARNING: Consult a physician before using this product if you are pregnant, lactating, or have a medical condition.
- Do not use if safety seal is broken.
- KEEP OUT OF THE REACH OF CHILDREN.
- Allergens and what it does not contain
- This product contains no milk or dairy products, yeast, corn, sugar, wheat, starch, preservatives, flavoring, or colors.
- Storage
- STORE IN A COOL, DRY PLACE WITH LID TIGHTLY CLOSED.
Source: label statements in DSLD label 35211.
What else is on the label?
Other ingredients: Vcaps(TM) Capsule.
How many labels does Purple Defense have?
3 labels are on file under this name since November 21, 2012: other sizes, label designs and reformulations. The current one leads this page.
- Label 35211 (current) Entered July 25, 2014 · off the market May 10, 2017 · 90 capsules · UPC 8 13006 01133 4
- Label 24928 Entered August 23, 2013 · off the market March 12, 2015 · 30 capsules · UPC 8 13006 01134 1
- Label 15232 Entered November 21, 2012 · off the market June 26, 2014 · 90 capsules · UPC 8 13006 01133 4
DSLD also links this label to: Purple Defense (package size difference, same product), Purple Defense (package size difference, same product), Purple Defense (image difference, same product), Purple Defense (package size difference, same product), Purple Defense with Resveratrol (package size difference, same product), Purple Defense with Resveratrol (image difference, same product), Purple Defense with Resveratrol (package size 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 Mercola Health Resources, LLC. (distributor), Hoffman Estates, IL. All Dr. Mercola Premium Supplements products.