N-Acetyl Cysteine
by Physician's Preference · capsule · 100 capsules
- Off the market since August 2020 (NIH)
- DSLD label 11064
- Serving 1 capsule
- 100 servings
N-Acetyl Cysteine by Physician's Preference lists 3 ingredients, 3 with an amount per serving of 1 capsule, such as 50 mcg of molybdenum, 25 mcg of selenium and 600 mg of N-acetyl cysteine. Its current label entered the NIH Dietary Supplement Label Database on July 25, 2012.
What is in N-Acetyl Cysteine?
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 |
|---|---|---|---|
| Molybdenumas Molybdenum Amino acid ChelateMolybdenum (Form: from Molybdenum Amino acid Chelate) | 50 mcg | 67% | 41% of 4,390 products listing molybdenum give more (median 50 mcg). Per day at the most servings: 100 mcg. |
| Seleniumas Inositol HexanicotinateSelenium (Form: from Inositol Hexanicotinate) | 25 mcg | 35% | 75% of 7,658 products listing selenium give more (median 55 mcg). Per day at the most servings: 50 mcg. |
| N-Acetyl Cysteine | 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 11064 (entered July 25, 2012), 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 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.
- NAC N-Acetyl Cysteine 600 mgCalifornia Academy of Health same ingredients
- NACDouglas Cooper Co. same ingredients
- NAC 600 mgBronson same ingredients
- NAC N-Acetyl CysteineLake Avenue Nutrition · off the market same ingredients
- NAC 600 mgLuckyVitamin same ingredients
- NAC N-Acetyl-Cysteine 600 mgProtocol For Life Balance same ingredients
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: As a dietary supplement, take 1 capsule 2 times a day.
- Warnings
- This bottle may contain an insert packet to ensure the freshness of its contents. These packets are not edible and should be discarded.
- Allergens and what it does not contain
- Contains no yeast, wheat, corn, soy, milk or preservatives.
Source: label statements in DSLD label 11064.
What else is on the label?
Other ingredients: Citric Acid.
How many labels does N-Acetyl Cysteine have?
One label is on file, entered on July 25, 2012.
- Label 11064 (current) Entered July 25, 2012 · off the market August 7, 2020 · 100 capsules
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Physician's Preference, Inc. (manufacturer), Katy, TX. All Physician's Preference products.