PlainVitamins

NAC 600

by Vitamin Discount Center · capsule · 120 vegetarian capsules

  • Off the market since November 2023 (NIH)
  • DSLD label 297890
  • Serving 1 vegetarian capsule
  • 120 servings

NAC 600 by Vitamin Discount Center lists 3 ingredients, 3 with an amount per serving of 1 vegetarian capsule, such as 70 mcg of selenium, 75 mcg of molybdenum and 600 mg of N-acetyl cysteine. Its current label entered the NIH Dietary Supplement Label Database on October 24, 2023.

What is in NAC 600?

Each row as the label prints it, per serving of 1 vegetarian 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).

NAC 600: Supplement Facts rows against the market (DSLD label 297890, January 2026 release)
IngredientAmount% DVAmong products listing it
Seleniumas L-Selenomethionine70 mcg127%Selenium in NAC 600 against 7,658 products70 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg70 mcg

Higher than 52% of 7,658 products listing selenium (median 55 mcg). Per day at the most servings: 140 mcg.

Molybdenumas Molybdenum Amino Acid Chelate75 mcg167%Molybdenum in NAC 600 against 4,390 products75 mcg per serving; the middle half of products list 25 mcg to 75 mcg, the median 50 mcg.DV 45 mcgUL 2,000 mcg75 mcg

Higher than 62% of 4,390 products listing molybdenum (median 50 mcg). Per day at the most servings: 150 mcg.

N-Acetyl Cysteine600 mgN-Acetyl Cysteine in NAC 600 against 1,259 products600 mg per serving; the middle half of products list 55 mg to 500 mg, the median 150 mg.600 mg

Higher than 80% of 1,259 products listing N-acetyl cysteine (median 150 mg). Per day at the most servings: 1,200 mg.

Source: NIH ODS Dietary Supplement Label Database, label 297890 (entered October 24, 2023), 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 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?

6 products list the very same ingredients; the nearest amounts come first.

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, adults take one (1) vegetarian capsule, two (2) to four (4) times daily between meals or, as directed by a healthcare professional.
Warnings
Keep out of reach of children.
Allergens and what it does not contain
Contains no sugar, salt, dairy, yeast, wheat, gluten, corn, preservatives, artificial colors or flavors.
Storage
Store in a cool, dry place and away from direct light.

Source: label statements in DSLD label 297890.

What else is on the label?

Other ingredients: Cellulose, Water, Cellulose, Magnesium Stearate, Silica.

How many labels does NAC 600 have?

2 labels are on file under this name since September 25, 2023: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 297890 (current) Entered October 24, 2023 · off the market November 17, 2023 · 120 vegetarian capsules
  2. Label 297891 Entered September 25, 2023 · off the market November 17, 2023 · 120 vegetarian capsules

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

Who makes it?

The label names Vitamin Discount Center, LLC (distributor), Tampa, Florida. All Vitamin Discount Center products.

Where next?