non-nutrient/non-botanical
N-Acetyl Cysteine supplements
Half of the 1,259 N-acetyl cysteine supplements in the NIH label database that print an amount list 150 mg or less per serving; the middle half list 55 mg to 500 mg (DSLD version 9.4.0, January 2026). The 140 products whose only supplement ingredient is N-acetyl cysteine list a median of 600 mg.
- Products listing it
- 1,6821,259 print an amount; 423 list it inside a blend without an amount
- Median per serving
- 150 mgmiddle half 55 mg to 500 mg
How much N-acetyl cysteine do supplements contain?
The median product lists 150 mg per serving. One in ten lists 25 mg or less, one in ten 600 mg or more. The amount printed most often is 100 mg (178 products).
Products by amount of N-acetyl cysteine per serving
1,259 products, log scale; extreme 0.2% at each end left out of the drawing.
Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).
Which products list the most N-acetyl cysteine?
On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).
- NAC + Glycine Powder Natural Peach Ginger FlavorPure Encapsulations1,800 mg
- N-Acetyl-L-Cysteine 1600 mgNaturaLife Labs1,600 mg
- VirunexHoltraCeuticals1,500 mg
- NAC N-Acetyl-L-Cysteine 600 mgThe Vitamin Shoppe1,200 mg
- Anti-Alcohol Antioxidants With HepatoProtection ComplexLife Extension1,200 mg
- Anti-Alcohol With HepatoProtection ComplexLife Extension1,200 mg
- Ar1macare ProOlympus Labs1,200 mg
- Anti-Alcohol HepatoProtection ComplexLife Extension1,200 mg
Have the amounts changed over the years?
Products whose current label entered DSLD in 2012 list a median of 100 mg; those entered in 2025, 200 mg.
| Year | Products | Median per serving |
|---|---|---|
| 2012 | 94 | 100 mg |
| 2013 | 97 | 100 mg |
| 2014 | 42 | 100 mg |
| 2015 | 51 | 100 mg |
| 2016 | 46 | 200 mg |
| 2017 | 76 | 158.5 mg |
| 2018 | 62 | 157.5 mg |
| 2019 | 72 | 125 mg |
| 2020 | 149 | 200 mg |
| 2021 | 100 | 250 mg |
| 2022 | 119 | 200 mg |
| 2023 | 118 | 200 mg |
| 2024 | 120 | 250 mg |
| 2025 | 98 | 200 mg |
Source: DSLD label entry dates and amounts, current labels.
In which products and brands?
Products listing N-acetyl cysteine by DSLD product type
Brands listing it most: Douglas Laboratories (45), XYMOGEN (36), Source Naturals (29), Pure Encapsulations (26), Integrative Therapeutics (22), Metagenics (20), Life Extension (20), Natural Factors (17), NuMedica (16), Ortho Molecular Products (14).
Every product listing N-acetyl cysteine
1,682 products, A to Z by name (page 33 of 34), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.
- VirunexHoltraCeuticals1,500 mg
- Visio PlexProgressive Professional from Progressive Laboratories250 mg
- VisiOmega AREDS 2 Plus Natural Lemon FlavorPatient One MediNutritionalsin a blend
- VisiOmega Natural Lemon FlavorPatient One 1 MediNutritionalsin a blend
- Vision AdvantageDr. David Williams · off the market250 mg
- Vision EssentialsDr. Whitaker260 mg
- Vision EssentialsWhitaker Nutrition260 mg
- Vision Essentials GoldDr. Whitaker260 mg
- Vision FactorsMichael's Naturopathic Programsin a blend
- Vision FormulaEagle200 mg
- Vision HealthEmerald Laboratories · off the market200 mg
- Vision HealthEmerald · off the market200 mg
- Vision PerformanceDr. Krawitz · off the market50 mg
- Vision PerformanceDr. Krawitz Professional Eye Care50 mg
- Vision PowerAltrumin a blend
- Vision SupportPathway To Healing150 mg
- Vision SupportVitabase200 mg
- Vision SupportMaritzMayer Laboratories · off the market200 mg
- Vision SupportVimerson Healthin a blend
- Vision SupportNusaPure200 mg
- Vision SupportAltrum100 mg
- Vision Support 1000MaritzMayer Laboratories · off the market100 mg
- Vision Support 5000Justified Laboratoriesin a blend
- Vision Support PlusLipotriad200 mg
- Vision Support RegimenRegiMen · off the market200 mg
- VisionCare CompleteHealthy Choice Naturals200 mg
- VisionGuardTriVita10 mg
- Visual EyesSource Naturals500 mg
- Visucare CompleteEnergyFirst100 mg
- Vita-Big KidsDouglas Laboratories2 mg
- Vita-Lea Gold Multi+ With Vitamin KShaklee50 mg
- Vita-Lea Gold Multi+ Without Vitamin KShaklee50 mg
- Vita-Lea Gold Vitamin K FormulaShaklee · off the market50 mg
- Vita-Lea Gold with Vitamin KShaklee · off the market50 mg
- Vita-Lea Gold without Vitamin KShaklee · off the market50 mg
- Vita-Lea Gold without Vitamin K FormulaShaklee50 mg
- VitabolicChaotic Labzin a blend
- Vital BrainVillage Vitality150 mg
- Vital ClearVital Nutrients200 mg
- Vital Detox - Part 1Brenda Watson's Vital Planetin a blend
- Vital EyesWoodstock Vitamins200 mg
- Vitality SupportDouglas Laboratoriesin a blend
- Vitality Support FormulaDouglas Laboratories · off the marketin a blend
- Vitalizer GoldShaklee50 mg
- Vitalizer Gold Without Vitamin KShaklee50 mg
- Vitamin C PlusCatie'sin a blend
- Vitamin Mineral Fusion Fruit Punch FlavorInfoWars Life50 mg
- Vitamins, Minerals & ProbioticsPharmax20 mg
- VitaPulsePrinceton Nutrients250 mg
- Vizion 2020Good 'N Natural · off the market65 mg