PlainVitamins

NAC N-Acetyl-Cysteine 600 mg

by Protocol For Life Balance · capsule · 100 veg capsules

  • On the market (NIH)
  • UPC 7 07359 10085 5
  • DSLD label 292273
  • Serving 1 veg capsule
  • 50 servings

NAC N-Acetyl-Cysteine 600 mg by Protocol For Life Balance lists 3 ingredients, 3 with an amount per serving of 1 veg capsule, such as 25 mcg of selenium, 50 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 N-Acetyl-Cysteine 600 mg?

Each row as the label prints it, per serving of 1 veg 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 N-Acetyl-Cysteine 600 mg: Supplement Facts rows against the market (DSLD label 292273, January 2026 release)
IngredientAmount% DVAmong products listing it
Seleniumas L-Selenomethionine25 mcg45%Selenium in NAC N-Acetyl-Cysteine 600 mg against 7,658 products25 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg25 mcg

75% of 7,658 products listing selenium give more (median 55 mcg). Per day at the most servings: 50 mcg.

Molybdenumas Sodium Molybdate50 mcg111%Molybdenum in NAC N-Acetyl-Cysteine 600 mg against 4,390 products50 mcg per serving; the middle half of products list 25 mcg to 75 mcg, the median 50 mcg.DV 45 mcgUL 2,000 mcg50 mcg

41% of 4,390 products listing molybdenum give more (median 50 mcg). Per day at the most servings: 100 mcg.

N-Acetyl Cysteine600 mgN-Acetyl Cysteine in NAC N-Acetyl-Cysteine 600 mg 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 292273 (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 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 usage: take 1 capsule twice daily, or as directed by your healthcare practitioner.
Warnings
Cautions/interactions: NAC may interact with certain pharmaceutical medications including ACE inhibitors and angina medications such as nitroglycerin and isosorbide. NAC may also interact with activated charcoal.
Do not eat freshness packets and enclosed.
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Allergens and what it does not contain
Non-gmo
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.
Storage
Keep freshness packets in bottle until it is empty. Keep bottle tightly closed at all times between usage.

Source: label statements in DSLD label 292273.

What else is on the label?

Other ingredients: Hypromellose, Stearic Acid, Citric Acid.

How many labels does NAC N-Acetyl-Cysteine 600 mg have?

7 labels are on file under this name since June 25, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 292273 (current) Entered October 24, 2023 · on the market · 100 veg capsules · UPC 7 07359 10085 5
  2. Label 77352 Entered December 22, 2017 · off the market June 9, 2022 · 100 veg capsules · UPC 7 07359 10085 5
  3. Label 69286 Entered December 23, 2016 · off the market May 16, 2017 · 100 veg capsules · UPC 7 07359 10085 5
  4. Label 67617 Entered December 23, 2016 · off the market November 30, 2016 · 100 veg capsules · UPC 7 07359 10085 5
  5. Label 28879 Entered December 24, 2013 · off the market November 24, 2015 · 100 veg capsules · UPC 7 07359 10085 5
  6. Label 14872 Entered October 25, 2012 · off the market November 4, 2013 · 100 vcaps(R) · UPC 7 07359 10085 5
  7. Label 9981 Entered June 25, 2012 · off the market August 9, 2012 · 100 capsules · UPC 7 07359 10085 5

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

Who makes it?

The label names Protocol For Life Balance (manufacturer, distributor), Bloomingdale, IL. All Protocol For Life Balance products.

Where next?