PlainVitamins

Stone Blocker

by Natures Nectar · capsule · 60 capsules

  • On the market (NIH)
  • UPC X0020AGCX3
  • DSLD label 246742
  • Serving 2 capsules
  • 30 servings

Stone Blocker by Natures Nectar lists 3 ingredients, 3 with an amount per serving of 2 capsules, such as 400 mg of chanca piedra extract, 100 mg of dandelion and 50 mg of celery. Its current label entered the NIH Dietary Supplement Label Database on May 22, 2021.

What is in Stone Blocker?

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).

Stone Blocker: Supplement Facts rows against the market (DSLD label 246742, January 2026 release)
IngredientAmount% DVAmong products listing it
Chanca Piedra extract400 mgChanca Piedra in Stone Blocker against 111 products400 mg per serving; the middle half of products list 50 mg to 500 mg, the median 250 mg.400 mg

Higher than 61% of 111 products listing chanca piedra (median 250 mg). Per day at the most servings: 800 mg.

Dandelion100 mgDandelion in Stone Blocker against 793 products100 mg per serving; the middle half of products list 50 mg to 250 mg, the median 100 mg.100 mg

48% of 793 products listing dandelion give more (median 100 mg). Per day at the most servings: 200 mg.

Celery50 mgCelery in Stone Blocker against 221 products50 mg per serving; the middle half of products list 50 mg to 400 mg, the median 75 mg.50 mg

67% of 221 products listing celery give more (median 75 mg). Per day at the most servings: 100 mg.

Source: NIH ODS Dietary Supplement Label Database, label 246742 (entered May 22, 2021), 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 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 Stone Blocker's, rare ingredients counting for more.

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: For adults, take two (2) capsules one to two times daily, preferably with a meal. As a reminder, discuss the supplement and medication you take with your healthcare provider.
Warnings
Warning: If you are pregnant, nursing, taking medications or planning any medical procedure, consult your doctor before use.
Discontinue use and consult your doctor if any adverse reactions occur.
Keep out of reach of children.
Do not use if safety seal is damaged or missing.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 246742.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Gelatin, Magnesium Stearate, Silicon Dioxide.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Proudly made in the USA GMP Good Manufacturing Practice Manufactured in a GMP Certified Facility.

How many labels does Stone Blocker have?

One label is on file, entered on May 22, 2021.

  1. Label 246742 (current) Entered May 22, 2021 · on the market · 60 capsules · UPC X0020AGCX3

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Natures Nectar (distributor), Independence, Ohio. All Natures Nectar products.

Where next?