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PlainVitamins

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
Verify with NIH DSLD → · FDA Daily Value reference → · Page 7 of 21

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

SinuPro 6 Sinus Support
Douglas Laboratories
10 ingredients · Non-Nutrient/Non-Botanical
On Market
Smoking Jitters
Signature Supplements
10 ingredients · Other Combinations
On Market
Source of Life Gold Drink Mix Delicious Tropical Fruit Flavor
NaturesPlus
257 ingredients · Other Combinations
On Market
Spectra Infinite Nutrition
DaVinci Laboratories
123 ingredients · Other Combinations
On Market
Spectrum Support Pak Part A Lemon Lime Flavor
Brainchild Nutritionals
37 ingredients · Other Combinations
On Market
Spectrum Support Three Lemon Lime Flavor
Brainchild Nutritionals
33 ingredients · Other Combinations
On Market
Spectrum Support Three Part A
Brainchild Nutritionals
25 ingredients · Other Combinations
On Market
Spectrum Support Three Part A
Brainchild Nutritionals
36 ingredients · Other Combinations
On Market
Spectrum Support Two Part A
Brainchild Nutritionals
36 ingredients · Other Combinations
On Market
Stress Support Pack
Douglas Laboratories
48 ingredients · Other Combinations
On Market
Sublingual L-Glutathione Plus
Douglas Laboratories
6 ingredients · Non-Nutrient/Non-Botanical
On Market
Super 10 Antioxidant
Country Life
17 ingredients · Other Combinations
On Market
Super 10 Antioxidant
Country Life
24 ingredients · Other Combinations
On Market
Super Antioxidant
The Vitamin Shoppe
24 ingredients · Other Combinations
On Market
Super Antioxidant
Nature's Blend
21 ingredients · Other Combinations
On Market
Super Antioxidant Formula
Vitabase
19 ingredients · Other Combinations
On Market
Super Antioxidant Formula
Meijer Naturals
19 ingredients · Other Combinations
On Market
Super Immune Seasonal Wellness Multivitamin
Super-Nutrition
75 ingredients · Other Combinations
On Market
Super Thisilyn
Nature's Way
18 ingredients · Other Combinations
On Market
The 30 Day Beauty Secret
Futurebiotics
61 ingredients · Other Combinations
On Market
The Pump Is The Cure
Fit Factor
10 ingredients · Non-Nutrient/Non-Botanical
On Market
ThioDox Glutathione Complex
Allergy Research Group
15 ingredients · Other Combinations
On Market
Thyro-CNV (K-9)
Apex Energetics
17 ingredients · Other Combinations
On Market
Thyroid Complex
BioCare
22 ingredients · Other Combinations
On Market
Total Balance Men's Premium
Xtendlife
122 ingredients · Other Combinations
On Market
Total Balance Women's Premium
Xtendlife
118 ingredients · Other Combinations
On Market
Total Cleanse Respiratory
Solaray
17 ingredients · Other Combinations
On Market
Toxicity Control
Kirkman
15 ingredients · Other Combinations
On Market
Trac Extreme-No Orange
MHP Maximum Human Performance
60 ingredients · Other Combinations
On Market
Tuba Prime Multivitamin
DEVA
110 ingredients · Other Combinations
On Market
Tyler Multiplex-1 With Iron
Integrative Therapeutics
33 ingredients · Other Combinations
On Market
Tyler Multiplex-1 Without Iron
Integrative Therapeutics
32 ingredients · Other Combinations
On Market
Ultimate Respiratory Defense
Swanson
6 ingredients · Non-Nutrient/Non-Botanical
On Market
Ultra Anti-Oxidant
Douglas Laboratories
23 ingredients · Other Combinations
On Market
Ultra Mega Citrus
GNC Women's Ultra Mega
54 ingredients · Other Combinations
On Market
Ultra Preventive 2000 Series C.V. Support Pack
Douglas Laboratories
65 ingredients · Botanical with Nutrients
On Market
Ultra Preventive 2000 Series Nutri-Smart Pack
Douglas Laboratories
66 ingredients · Other Combinations
On Market
Ultra Preventive Forte-Chel
Douglas Laboratories
53 ingredients · Other Combinations
On Market
Ultra Preventive Forte-Chel (Capsules)
Douglas Laboratories
54 ingredients · Other Combinations
On Market
Ultra-AM Capsules
Douglas Laboratories
35 ingredients · Other Combinations
On Market
Ultra-PM Capsules
Douglas Laboratories
34 ingredients · Other Combinations
On Market
UltraClear Renew Berry
Metagenics
72 ingredients · Other Combinations
On Market
UltraClear Renew Chai
Metagenics
68 ingredients · Other Combinations
On Market
UltraClear Renew Vanilla
Metagenics
69 ingredients · Other Combinations
On Market
Unleashed Tropical Fruit Punch
Fight Labs
49 ingredients · Other Combinations
On Market
VegiSource Multivitamin
Viva Vitamins
41 ingredients · Other Combinations
On Market
Vision Support
Pathway To Healing
18 ingredients · Other Combinations
On Market
Vision Support
Vitabase
14 ingredients · Other Combinations
On Market
Vision Support
Altrum
17 ingredients · Other Combinations
On Market
Vita-Big Kids
Douglas Laboratories
40 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 →

Magnesium
27,686 products · Non-nutrient/non-botanical
Citric Acid
10,081 products · Non-nutrient/non-botanical
Sucralose
5,697 products · Non-nutrient/non-botanical
Alcohol
4,787 products · Non-nutrient/non-botanical
Acesulfame potassium
3,384 products · Non-nutrient/non-botanical

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.

Read our methodology , how this data is sourced, computed, and verified.

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.