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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

Total Joint Support
Nutri-West
20 ingredients · Other Combinations
Off Market
Ultimate Greens Protein 8 In 1 W/Hemp Protein
OL Olympian Labs
47 ingredients · Other Combinations
Off Market
Ultra Anti-Oxidant
Douglas Laboratories
27 ingredients · Other Combinations
Off Market
Ultra Anti-Oxidant
Douglas Laboratories
23 ingredients · Other Combinations
Off Market
Ultra Hepa Trope II
AB American Biologics
14 ingredients · Other Combinations
Off Market
Ultra Mega Green Men's
GNC Ultra Mega Green
48 ingredients · Other Combinations
Off Market
Ultra Mega Green Men's 50 Plus
GNC Ultra Mega Green
47 ingredients · Other Combinations
Off Market
Ultra Mega Green without Iron
GNC Ultra Mega Green
48 ingredients · Other Combinations
Off Market
Ultra Mega Green Women's
GNC Ultra Mega Green
46 ingredients · Other Combinations
Off Market
Ultra Mega Green Women's
GNC Ultra Mega Green
49 ingredients · Other Combinations
Off Market
Ultra Mega Green Women's 50 Plus
GNC Ultra Mega Green
48 ingredients · Other Combinations
Off Market
Ultra NeuroRecovery
AB American Biologics
12 ingredients · Other Combinations
Off Market
Ultra Preventive 2000 Series CNCR-Support Formula
Douglas Laboratories
71 ingredients · Other Combinations
Off Market
Ultra Preventive EZ Easy Swallow Multivitamin Teen
Douglas Laboratories
43 ingredients · Other Combinations
Off Market
Ultra Preventive EZ Easy Swallow Multivitamin Teen
Douglas Laboratories
43 ingredients · Other Combinations
Off Market
Ultra Preventive Forte-Chel
Douglas Laboratories
53 ingredients · Other Combinations
Off Market
Ultra Source Of Life Liquid Natural Mango Pineapple Flavor
Nature's Plus
73 ingredients · Other Combinations
Off Market
Ultra Source Of Life Liquid Natural Mango Pineapple Flavor
Nature's Plus
73 ingredients · Other Combinations
Off Market
Ultra Source Of Life No Iron
Nature's Plus
76 ingredients · Other Combinations
Off Market
Ultra Vita Man Sport
Vitamin World
70 ingredients · Other Combinations
Off Market
Vision Support Regimen
RegiMen
14 ingredients · Other Combinations
Off Market
VisionCare Complete
Healthy Choice Naturals
14 ingredients · Other Combinations
Off Market
VisionCare Complete
Healthy Choice Naturals
14 ingredients · Other Combinations
Off Market
VisionCare Complete
Healthy Choice Naturals
11 ingredients · Other Combinations
Off Market
Vita-Lea Gold Vitamin K Formula
Shaklee
48 ingredients · Other Combinations
Off Market
Vita-Lea Gold Without Vitamin K
Shaklee
47 ingredients · Multi-Vitamin and Mineral (MVM)
Off Market
Vitalizer Gold
Shaklee
59 ingredients · Other Combinations
Off Market
Vitalizer Gold Without Vitamin K
Shaklee
54 ingredients · Other Combinations
Off Market
Vitamin C Plus
Catie's
39 ingredients · Other Combinations
Off Market
Whole Food Enhanced Multivitamin
Marked
47 ingredients · Other Combinations
Off Market
Whole-Food Multivitamin Plus Vital Minerals
Dr. Mercola
69 ingredients · Other Combinations
Off Market
Women's Active
GNC Ultra Mega Green
52 ingredients · Other Combinations
Off Market
Xpand Xtreme Pump Blue Raspberry
Dymatize Nutrition
39 ingredients · Other Combinations
Off Market
Xpand Xtreme Pump Fruit Punch
Dymatize Nutrition
39 ingredients · Other Combinations
Off Market
Xpand Xtreme Pump Grape
Dymatize Nutrition
39 ingredients · Other Combinations
Off Market
Xpand Xtreme Pump Lemonade
Dymatize Nutrition
38 ingredients · Other Combinations
Off Market
Xpand Xtreme Pump Orange
Dymatize Nutrition
39 ingredients · Other Combinations
Off Market
Youthful Memory
Juvenon
16 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.