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Non-nutrient/non-botanical · Supplement ingredient

N-Acetyl Cysteine

N-Acetyl Cysteine is listed on 1,027 U.S. supplement product labels in the NIH DSLD, #201 of 4,614 by label frequency.

1,027
Products
#201 of 4,614
By frequency

How common is N-Acetyl Cysteine?

Number of supplement labels listing N-Acetyl Cysteine vs nearby non-nutrient/non-botanical ingredients

products
Source NIH Dietary Supplement Label Database (DSLD) As of 2026

Products containing N-Acetyl Cysteine

Vita-Lea Gold Multi+ Without Vitamin K
Shaklee
46 ingredients · Other Combinations
On Market
Vita-Lea Gold without Vitamin K Formula
Shaklee
47 ingredients · Other Combinations
On Market
Vitalizer Gold Without Vitamin K
Shaklee
69 ingredients · Other Combinations
On Market
Week Four: Repair
Douglas Laboratories
104 ingredients · Other Combinations
On Market
Week Three: Detox, AM Pack
Douglas Laboratories
53 ingredients · Other Combinations
On Market
Week Two: Detox, AM Pack
Douglas Laboratories
37 ingredients · Other Combinations
On Market
Well-Max With NAC
Country Life
29 ingredients · Other Combinations
On Market
Whole Body Rejuvenation Formula
Natural Factors
48 ingredients · Other Combinations
On Market
Whole-Food Complex with added Multivitamin plus Vital Minerals
Dr. Mercola
71 ingredients · Other Combinations
On Market
Wholly Immune
Allergy Research Group
73 ingredients · Other Combinations
On Market
Women's Multi
NaturesPlus AgeLoss
109 ingredients · Other Combinations
On Market
4Life Transfer Factor ReCall
4Life
18 ingredients · Botanical with Nutrients
Off Market
A.R.M.D. Eye Support
Douglas Laboratories
14 ingredients · Other Combinations
Off Market
ActiVit Metabolism Formula
Beachbody Nutritionals
55 ingredients · Other Combinations
Off Market
Advanced Creatine Blast Fruit Punch
MET-Rx
28 ingredients · Other Combinations
Off Market
Advanced Creatine Blast Grape
MET-Rx
26 ingredients · Other Combinations
Off Market
Advanced Cycle Support RX
IronMagLabs
10 ingredients · Other Combinations
Off Market
Advanced Daily Extend
Health Resources
40 ingredients · Other Combinations
Off Market
Advanced Liver Plus
New Sun
23 ingredients · Other Combinations
Off Market
Advanced Liver Support
Health Resources
8 ingredients · Other Combinations
Off Market
Advanced NutriVision
Bronson Laboratories
21 ingredients · Other Combinations
Off Market
Alpha Base Tablets without Iron
Ortho Molecular Products
42 ingredients · Other Combinations
Off Market
Alpha-Lipoic Acid With N-Acetyl Cysteine
ProCaps Laboratories
6 ingredients · Other Combinations
Off Market
Anti-Oxidant Caps
Vital Nutrients
11 ingredients · Other Combinations
Off Market
Antioxidant Caps
NOW
18 ingredients · Other Combinations
Off Market
Antioxidant Formula Commando 2000 Antioxidant Protection
Nature's Plus
27 ingredients · Other Combinations
Off Market
Antioxidant Select
Moss Nutrition
22 ingredients · Other Combinations
Off Market
Arth-Support Formula
Douglas Laboratories Ultra Preventive 2000 Series
55 ingredients · Other Combinations
Off Market
Basic Detox Nutrients
Thorne Research
43 ingredients · Other Combinations
Off Market
Best NAC Detox Regulators
Doctor's Best
6 ingredients · Other Combinations
Off Market
Bio-Inflammatory Plus Functional Food
BioGenesis Nutraceuticals
54 ingredients · Other Combinations
Off Market
BioCleanse Capsules
BioGenesis Nutraceuticals
11 ingredients · Other Combinations
Off Market
BioCleanse Plus
BioGenesis Nutraceuticals
62 ingredients · Other Combinations
Off Market
BioInflammatory Plus Capsules
BioGenesis Nutraceuticals
11 ingredients · Other Combinations
Off Market
Bodyforge 2.0 Lemonade
Neogenix
32 ingredients · Other Combinations
Off Market
BrainSustain Creamy Chocolate
XYMOGEN
47 ingredients · Other Combinations
Off Market
BrainSustain For Kids Vanilla Delight
XYMOGEN EP
31 ingredients · Other Combinations
Off Market
BrainSustain Vanilla Delight
XYMOGEN
46 ingredients · Other Combinations
Off Market
Cardio Protect
BioGenesis Nutraceuticals
29 ingredients · Other Combinations
Off Market
Cleanse Detox Formula*
Prime Nutrition Female Series
12 ingredients · Botanical with Nutrients
Off Market
Clear Change Daily Essentials
Metagenics
53 ingredients · Other Combinations
Off Market
Clinical Nutrients Antioxidant
Integrative Therapeutics
23 ingredients · Other Combinations
Off Market
Clinical Strength Ocu Support
Protocol For Life Balance
27 ingredients · Other Combinations
Off Market
Clinical Strength Ocu Support
NOW
29 ingredients · Other Combinations
Off Market
Clinical Strength Ocu Support
Protocol For Life Balance
30 ingredients · Other Combinations
Off Market
Clinical Strength Ocu Support
Protocol For Life Balance
29 ingredients · Other Combinations
Off Market
CNCR-Support Formula
Douglas Laboratories
70 ingredients · Other Combinations
Off Market
Crave Control
HoltraCeuticals
14 ingredients · Other Combinations
Off Market
Cro-Magnon Extreme Anabolic
DNA Anabolics
4 ingredients · Non-Nutrient/Non-Botanical
Off Market
Cysteine Complex
BioCare
18 ingredients · Other Combinations
Off Market

Nearby Ingredients in Non-nutrient/non-botanical

Other ingredients in the Non-nutrient/non-botanical category cataloged in the NIH DSLD. Useful for comparing how common different nutrients are across the US supplement market.

Compare N-Acetyl Cysteine vs Magnesium →

Nationwide ingredients with similar DSLD presence

Two peer sets for N-Acetyl Cysteine: closest on total DSLD label listings (1,027 here) and closest on distinct brands that list it (276 here). Peers exclude the same DSLD category, and rows stay link-disjoint so each axis is a distinct neighborhood.

Similar label frequency

Nearest other ingredients by distinct DSLD product labels (floored at ≥50), outside this category.

Similar brand breadth

Nearest other ingredients by distinct brands listing them (floored at ≥100 brands), distinct from the label-frequency row.

Frequently asked about N-Acetyl Cysteine

How many supplement products contain N-Acetyl Cysteine?
1,027 supplement product labels in the NIH DSLD currently lists N-Acetyl Cysteine as an ingredient. By label frequency it ranks #201 of 4,614 among ingredients PlainVitamins ranks (same sort as /rankings/most-common-ingredients). Browse them below.

Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD). Regulatory reference: Source: Dietary Supplement Health and Education Act (DSHEA), 1994, 21 U.S.C. § 321(ff).

Disclaimer, Not Medical Advice: Information on this page is based on manufacturer-declared label data and is provided for educational and reference purposes only. It does not constitute medical, nutritional, or health advice. Consult a licensed healthcare provider before starting, stopping, or combining any supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.

Every figure on PlainVitamins is rendered directly from the NIH Dietary Supplement Label Database (DSLD), no number is typed in by an editor. Ingredient figures are computed directly from the NIH DSLD, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.