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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

50+ Women's Daily
ecoNugenics
61 ingredients · Other Combinations
On Market
A.R.M.D. Eye Support
Douglas Laboratories
14 ingredients · Other Combinations
On Market
A.R.M.D. Eye Support Beta
Douglas Laboratories
15 ingredients · Other Combinations
On Market
A.R.M.D. Eye Support Beta
Douglas Laboratories
15 ingredients · Other Combinations
On Market
Accell Therapeutic
Systemic Formulas
70 ingredients · Other Combinations
On Market
Acetyl L-Carnitine Alpha Lipoic Acid
Solaray
18 ingredients · Other Combinations
On Market
ActiVit Body Toning Formula
Beachbody Nutritionals
60 ingredients · Other Combinations
On Market
ActiVit Metabolism Formula
Beachbody Nutritionals
55 ingredients · Other Combinations
On Market
Activite Sport
MHP Maximum Human Performance
63 ingredients · Other Combinations
On Market
ADHD Vitamin Support
Brainchild Nutritionals
27 ingredients · Other Combinations
On Market
Adult Sinus Support
Redd Remedies
17 ingredients · Other Combinations
On Market
Age (Age Defense Formula)
Prime
13 ingredients · Other Combinations
On Market
All-Basic-Plus 750 Milligrams
Montiff
23 ingredients · Other Combinations
On Market
Allergy Defense Formula
Beyond Health
18 ingredients · Other Combinations
On Market
Amped ECN NOS Blue Inferno Drink Mix
MET-Rx
34 ingredients · Other Combinations
On Market
Anti-Alcohol Complex
Life Extension
19 ingredients · Other Combinations
On Market
Anti-Mutagens With Ellagic Acid
Ecological Formulas
16 ingredients · Other Combinations
On Market
Antioxidant Caps
NOW
22 ingredients · Other Combinations
On Market
Antioxidant Caps
NOW
22 ingredients · Other Combinations
On Market
AntiOxidant Essentials With Vitamins C & E
Martin Avenue Pharmacy
19 ingredients · Other Combinations
On Market
Antioxidant Select
Moss Nutrition
22 ingredients · Other Combinations
On Market
ArthroSoothe Supreme
Designs for Health
20 ingredients · Other Combinations
On Market
Athletic Nutrients
Pure Encapsulations
50 ingredients · Other Combinations
On Market
Axis Endo Mango Flavor
Metagenics
55 ingredients · Other Combinations
On Market
Axis Endo Mango Flavor
Metagenics
55 ingredients · Other Combinations
On Market
BabyCare Prenatal Mega Antioxidant
USANA
34 ingredients · Vitamin
On Market
Basic Nutrient Support Capsule
Pathway To Healing
26 ingredients · Other Combinations
On Market
Bio-Cardio 369
Biotics Research Corporation
42 ingredients · Other Combinations
On Market
Bio-Cardio Packs
Biotics Research Corporation
44 ingredients · Other Combinations
On Market
Bio-Cardiozyme Forte
Biotics Research Corporation
40 ingredients · Other Combinations
On Market
Bio-Cardiozyme Forte
Biotics Research Corporation
40 ingredients · Other Combinations
On Market
Bio-Detox Packs
Biotics Research Corporation
67 ingredients · Other Combinations
On Market
Bio-Multi Plus
Biotics Research Corporation
40 ingredients · Other Combinations
On Market
Bio-Multi Plus
Biotics Research Corporation
40 ingredients · Other Combinations
On Market
Bio-Multi Plus Iron & Copper Free
Biotics Research Corporation
38 ingredients · Other Combinations
On Market
Bio-Multi Plus Iron & Copper Free
Biotics Research Corporation
38 ingredients · Other Combinations
On Market
Bio-Multi Plus Iron Free
Biotics Research Corporation
39 ingredients · Other Combinations
On Market
Bio-Multi Plus Iron Free
Biotics Research Corporation
39 ingredients · Other Combinations
On Market
BioCleanse Capsules
Nutra BioGenesis
14 ingredients · Other Combinations
On Market
BioCleanse Plus
Nutra BioGenesis
74 ingredients · Other Combinations
On Market
BioFoundation-G
Bioclinic Naturals
44 ingredients · Other Combinations
On Market
BioInflaMax Capsules
Nutra BioGenesis
15 ingredients · Other Combinations
On Market
BrainSustain for Kids Vanilla Delight
XYMOGEN
29 ingredients · Other Combinations
On Market
BrainSustain Vanilla Delight
XYMOGEN
46 ingredients · Other Combinations
On Market
BrainSustain Vanilla Delight
XYMOGEN
46 ingredients · Other Combinations
On Market
Cell Protector
GNC Preventive Nutrition
22 ingredients · Other Combinations
On Market
Cellular Shield
ecoNugenics
32 ingredients · Other Combinations
On Market
Centurion Defender BT+
Centurion
9 ingredients · Other Combinations
On Market
Centurion Defender Detox
Centurion
15 ingredients · Other Combinations
On Market
Cholesterol Regulation Complex
Shaklee
8 ingredients · Other Combinations
On 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.