L-Cysteine/N-Acetyl-L-Cysteine
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26
products
Updated April 2026Dosage Range
33 mgavg 146.55 mg200 mg
L-Cysteine/N-Acetyl-L-Cysteine is found in 65 supplement products from 2 brands. Dosages range from 33 to 200 mg, with an average of 146.55. The most common form is Tablet or Pill.
Top 5 Highest-Dosage L-Cysteine/N-Acetyl-L-Cysteine Supplements
- EPD II Formula by Douglas Laboratories — 200 mg
- Ultra Preventive D by Douglas Laboratories — 200 mg
- Ultra Preventive D With Copper by Douglas Laboratories — 200 mg
- Ultra Preventive III with Iron by Douglas Laboratories — 200 mg
- Ultra Preventive IX With Vitamin K by Douglas Laboratories — 200 mg
EPD II Formula by Douglas Laboratories has the highest L-Cysteine/N-Acetyl-L-Cysteine dosage at 200 mg. Essential Pea Protein Vanilla Bean Flavor by PureFormulas has the lowest at 45 mg.
All Products
showing 26 of 26| Product | Brand | Amount | Daily Value | Form |
|---|---|---|---|---|
| EPD II Formula⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Douglas Laboratories | 200 mg | — | Tablet or Pill |
| Ultra Preventive D⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Douglas Laboratories | 200 mg | — | Tablet or Pill |
| Ultra Preventive D With Copper⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Douglas Laboratories | 200 mg | — | Tablet or Pill |
| Ultra Preventive III with Iron⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Douglas Laboratories | 200 mg | — | Tablet or Pill |
| Ultra Preventive IX With Vitamin K⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (1) | Douglas Laboratories | 200 mg | — | Tablet or Pill |
| Diabet Support Pack⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Douglas Laboratories | 200 mg | — | Other (e.g. tea bag) |
| Ultra Preventive D With Copper & Iron⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Douglas Laboratories | 200 mg | — | Tablet or Pill |
| Ultra Preventive III Powder⚠ EXCEEDS UL (2) | Douglas Laboratories | 200 mg | — | Powder |
| Ultra Preventive III A Low Allergenicity⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Douglas Laboratories | 200 mg | — | Tablet or Pill |
| Diabet-Support Pack⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Douglas Laboratories | 200 mg | — | Other (e.g. tea bag) |
| Ultra Preventive Beta With Copper⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Douglas Laboratories | 200 mg | — | Tablet or Pill |
| Nutri-Immuno Pack With Herbs⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Douglas Laboratories | 166 mg | — | Other (e.g. tea bag) |
| Men's Health Pack⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Douglas Laboratories | 100 mg | — | Other (e.g. tea bag) |
| Weight Management Pack⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Douglas Laboratories | 100 mg | — | Other (e.g. tea bag) |
| Cognitive Support Pack⚠ EXCEEDS UL | Douglas Laboratories | 100 mg | — | Other (e.g. tea bag) |
| Prosta-Pro Support Pack⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Douglas Laboratories | 100 mg | — | Other (e.g. tea bag) |
| Ultra Preventive III Capsules with Copper⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Douglas Laboratories | 100 mg | — | Capsule |
| Women's Health Pack⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Douglas Laboratories | 100 mg | — | Other (e.g. tea bag) |
| Dad's Pack⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Douglas Laboratories | 67 mg | — | Other (e.g. tea bag) |
| Ultra Protein Plus Natural Chocolate Almond Flavor | Douglas Laboratories | 45 mg | — | Powder |
| Ultra Protein Plus Chocolate Almond Flavor● OTHER INGREDIENTS (2) | Douglas Laboratories | 45 mg | — | Powder |
| Cholo-Pak● OTHER INGREDIENTS (2) | Douglas Laboratories | 33 mg | — | Other (e.g. tea bag) |
| Ultra Preventive III With Zinc PicolinateDiscontinued⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Douglas Laboratories | 200 mg | — | Tablet or Pill |
| EPD FormulaDiscontinued⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Douglas Laboratories | 200 mg | — | Tablet or Pill |
| Ultra Protein Plus Vanilla Bean FlavorDiscontinued● OTHER INGREDIENTS (3) | Douglas Laboratories | 45 mg | — | Powder |
| Essential Pea Protein Vanilla Bean FlavorDiscontinued● OTHER INGREDIENTS (3) | PureFormulas | 45 mg | — | Powder |
Ultra Preventive D
⚠ EXCEEDS UL (2)
● OTHER INGREDIENTS (2)
Douglas Laboratories200 mg— DVTablet or Pill
Ultra Preventive D With Copper
⚠ EXCEEDS UL (2)
● OTHER INGREDIENTS (2)
Douglas Laboratories200 mg— DVTablet or Pill
Ultra Preventive III with Iron
⚠ EXCEEDS UL (2)
● OTHER INGREDIENTS (2)
Douglas Laboratories200 mg— DVTablet or Pill
Ultra Preventive IX With Vitamin K
⚠ EXCEEDS UL (2)
● OTHER INGREDIENTS (1)
Douglas Laboratories200 mg— DVTablet or Pill
Diabet Support Pack
⚠ EXCEEDS UL
● OTHER INGREDIENTS (2)
Douglas Laboratories200 mg— DVOther (e.g. tea bag)
Ultra Preventive D With Copper & Iron
⚠ EXCEEDS UL (2)
● OTHER INGREDIENTS (2)
Douglas Laboratories200 mg— DVTablet or Pill
Ultra Preventive III A Low Allergenicity
⚠ EXCEEDS UL (2)
● OTHER INGREDIENTS (2)
Douglas Laboratories200 mg— DVTablet or Pill
Diabet-Support Pack
⚠ EXCEEDS UL (2)
● OTHER INGREDIENTS (2)
Douglas Laboratories200 mg— DVOther (e.g. tea bag)
Ultra Preventive Beta With Copper
⚠ EXCEEDS UL (2)
● OTHER INGREDIENTS (2)
Douglas Laboratories200 mg— DVTablet or Pill
Nutri-Immuno Pack With Herbs
⚠ EXCEEDS UL
● OTHER INGREDIENTS (2)
Douglas Laboratories166 mg— DVOther (e.g. tea bag)
Men's Health Pack
⚠ EXCEEDS UL
● OTHER INGREDIENTS (2)
Douglas Laboratories100 mg— DVOther (e.g. tea bag)
Weight Management Pack
⚠ EXCEEDS UL
● OTHER INGREDIENTS (2)
Douglas Laboratories100 mg— DVOther (e.g. tea bag)
Prosta-Pro Support Pack
⚠ EXCEEDS UL (2)
● OTHER INGREDIENTS (2)
Douglas Laboratories100 mg— DVOther (e.g. tea bag)
Ultra Preventive III Capsules with Copper
⚠ EXCEEDS UL
● OTHER INGREDIENTS (2)
Douglas Laboratories100 mg— DVCapsule
Women's Health Pack
⚠ EXCEEDS UL (2)
● OTHER INGREDIENTS (2)
Douglas Laboratories100 mg— DVOther (e.g. tea bag)
Ultra Protein Plus Chocolate Almond Flavor
● OTHER INGREDIENTS (2)
Douglas Laboratories45 mg— DVPowder
Ultra Preventive III With Zinc PicolinateDiscontinued
⚠ EXCEEDS UL (2)
● OTHER INGREDIENTS (2)
Douglas Laboratories200 mg— DVTablet or Pill
EPD FormulaDiscontinued
⚠ EXCEEDS UL (2)
● OTHER INGREDIENTS (2)
Douglas Laboratories200 mg— DVTablet or Pill
Ultra Protein Plus Vanilla Bean FlavorDiscontinued
● OTHER INGREDIENTS (3)
Douglas Laboratories45 mg— DVPowder
Essential Pea Protein Vanilla Bean FlavorDiscontinued
● OTHER INGREDIENTS (3)
PureFormulas45 mg— DVPowder
Frequently Asked Questions
How many products contain L-Cysteine/N-Acetyl-L-Cysteine?
There are 65 supplement products containing L-Cysteine/N-Acetyl-L-Cysteine from 2 brands in the NIH DSLD database.
What is the average L-Cysteine/N-Acetyl-L-Cysteine dosage?
The average L-Cysteine/N-Acetyl-L-Cysteine dosage across supplement products is 146.55 mg. Dosages range from 33 to 200 mg.
What is the most common form for L-Cysteine/N-Acetyl-L-Cysteine supplements?
The most common product form for L-Cysteine/N-Acetyl-L-Cysteine supplements is Tablet or Pill.
What brands make L-Cysteine/N-Acetyl-L-Cysteine supplements?
There are 2 brands that make supplements containing L-Cysteine/N-Acetyl-L-Cysteine in the NIH DSLD database.
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Quick Facts
- Products
- 65
- Brands
- 2
- Avg Dose
- 146.55 mg
- Common Form
- Tablet or Pill
- Category
- blend