Quercetin and Pterostilbene Advanced
by Dr. Mercola · capsule · 180 capsules
- On the market (NIH)
- UPC 8 10487 03658 0
- DSLD label 308863
- Serving 1 capsule; amounts per 2 capsules
- 180 servings
Quercetin and Pterostilbene Advanced by Dr. Mercola lists one ingredient: 50 mg of trans-pterostilbene per serving of 2 capsules. Its current label entered the NIH Dietary Supplement Label Database on March 22, 2024.
What is in Quercetin and Pterostilbene Advanced?
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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Calories | 5 Calories | ||
| Total Carbohydrates | less than 1 g | 1% | |
| Dietary Fiber | less than 1 g | 3% | |
| Quercetin Phytosome Complexas Sophora japonica L.34% quercetin | 500 mg | ||
| trans-Pterostilbene | 50 mg | 30% of 115 products listing pterostilbene give more (median 50 mg). Per day at the most servings: 100 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 308863 (entered March 22, 2024), 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?
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?
The products whose ingredient lists overlap most with Quercetin and Pterostilbene Advanced's, rare ingredients counting for more.
- PterostilbeneIndiana Botanic Gardens 1 shared, 61% alike
- Ptero-BBronson Laboratories 1 shared, 61% alike
- PteroActivBiotivia 1 shared, 61% alike
- Trans-PterostilbeneJarrow Formulas · off the market 1 shared, 61% alike
- pTeroPure Pterostilbene 50 mgSwanson Ultra · off the market 1 shared, 61% alike
- pTeroPure 50 mgLife Extension 1 shared, 61% 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: Adults, as a dietary supplement, take one (1) capsule in the morning and one (1) capsule in the evening.
- Warnings
- Keep out of reach of children.
- Do not use if safety seal is broken.
- If you are nursing, pregnant, have high cholesterol or other medical condition, or are taking medication such as cholesterol lowering medication, consult your physician before taking this product.
Source: label statements in DSLD label 308863.
What else is on the label?
Other ingredients: Microcrystalline Cellulose, Hydroxypropyl Methylcellulose, Carrot, Powder, Sunflower Lecithin, Potato Maltodextrin, Silicon Dioxide.
How many labels does Quercetin and Pterostilbene Advanced have?
3 labels are on file under this name since August 23, 2020: other sizes, label designs and reformulations. The current one leads this page.
- Label 308863 (current) Entered March 22, 2024 · on the market · 180 capsules · UPC 8 10487 03658 0
- Label 250387 Entered May 22, 2021 · off the market June 6, 2023 · 180 capsules · UPC 8 10487 03658 0
- Label 232895 Entered August 23, 2020 · on the market · 60 capsules · UPC 8 10487 03172 1
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names NHP (distributor), Cape Coral, FL. All Dr. Mercola products.