L-Cysteine
amino acid
238
products
Updated April 2026Dosage Range
0 mgavg 117.18 mg1000 mg
L-Cysteine is found in 436 supplement products from 112 brands. Dosages range from 0 to 1000 mg, with an average of 117.18. The most common form is Tablet or Pill.
Top 5 Highest-Dosage L-Cysteine Supplements
- Healthy Hair Formula by Puritan's Pride Premium — 1000 mg
- Healthy Hair Formula by Vitamin World — 1000 mg
- L-Cysteine Powder by Source Naturals — 900 mg
- Winter Wellness by Life Extension — 700 mg
- BreatheMD by 1MD Nutrition — 600 mg
Healthy Hair Formula by Puritan's Pride Premium has the highest L-Cysteine dosage at 1000 mg. Hema-Plex Softgels by NaturesPlus has the lowest at 50 mg.
Top 100 by Dosage
showing 100 of 238| Product | Brand | Amount | Daily Value | Form |
|---|---|---|---|---|
| Healthy Hair Formula● OTHER INGREDIENTS (1) | Puritan's Pride Premium | 1000 mg | — | Capsule |
| Healthy Hair Formula● OTHER INGREDIENTS (1) | Vitamin World | 1000 mg | — | Capsule |
| L-Cysteine Powder | Source Naturals | 900 mg | — | Powder |
| Winter Wellness● OTHER INGREDIENTS (2) | Life Extension | 700 mg | — | Capsule |
| BreatheMD● OTHER INGREDIENTS (1) | 1MD Nutrition | 600 mg | — | Capsule |
| Whey Protein Gold Isolate Plus Natural Vanilla Flavor | California Academy of Health | 504 mg | — | Powder |
| Cysteine 500 mg | Dr. Clark Store | 500 mg | — | Capsule |
| Hair Force⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | KAL | 500 mg | — | Capsule |
| L-Cysteine 500 mg● OTHER INGREDIENTS (2) | Puritan's Pride Premium | 500 mg | — | Capsule |
| L-Cysteine 500 mg● OTHER INGREDIENTS (2) | Vitamin World | 500 mg | — | Capsule |
| L-Cysteine 500 mg | Solaray | 500 mg | — | Capsule |
| L-Cysteine 500 mg● OTHER INGREDIENTS (2) | California Gold Nutrition | 500 mg | — | Capsule |
| L-Cystine | BulkSupplements.com | 500 mg | — | Powder |
| L-Cysteine 500 mg● OTHER INGREDIENTS (2) | LuckyVitamin | 500 mg | — | Tablet or Pill |
| L-Cysteine 500 mg● OTHER INGREDIENTS (1) | Douglas Laboratories | 500 mg | — | Capsule |
| L-Cysteine 500 mg● OTHER INGREDIENTS (2) | Lake Avenue Nutrition | 500 mg | — | Capsule |
| OptiCleanse Plus Rice Original | XYMOGEN | 463 mg | — | Powder |
| Whey Protein Gold Isolate Plus Natural Chocolate Flavor● OTHER INGREDIENTS (1) | California Academy of Health | 458 mg | — | Powder |
| Hair | Viva Vitamins | 400 mg | — | Tablet or Pill |
| Vita Chel Pack⚠ EXCEEDS UL (3)● OTHER INGREDIENTS (1) | Douglas Laboratories | 350 mg | — | Tablet or Pill |
| Vitamins For The Hair⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Vitamin World | 334 mg | — | Other (e.g. tea bag) |
| Hair, Skin & Nails● OTHER INGREDIENTS (2) | CHK Nutrition | 300 mg | — | Tablet or Pill |
| Vita-Chel Plus⚠ EXCEEDS UL● OTHER INGREDIENTS (1) | Douglas Laboratories | 300 mg | — | Tablet or Pill |
| Hepasil DTX● OTHER INGREDIENTS (2) | USANA | 225 mg | — | Tablet or Pill |
| Thyro-Dyne● OTHER INGREDIENTS (2) | InterPlexus Whole Body Health | 210 mg | — | Capsule |
| Hair, Skin, & Nail essentials● OTHER INGREDIENTS (2) | Healthy Choice Naturals | 200 mg | — | Capsule |
| Hair Effects | DaVinci Laboratories | 200 mg | — | Capsule |
| Ultra NourishHair Beauty Basics● OTHER INGREDIENTS (3) | GNC Women's | 200 mg | — | Other (e.g. tea bag) |
| Hair, Skin & Nails Beauty Basics● OTHER INGREDIENTS (4) | GNC Women's | 200 mg | — | Other (e.g. tea bag) |
| Ultra-Guard Low Allergenicity Antioxidant● OTHER INGREDIENTS (2) | Douglas Laboratories | 200 mg | — | Tablet or Pill |
| RootMD | Premium Certified | 200 mg | — | Capsule |
| Hair, Skin & Nails● OTHER INGREDIENTS (1) | Rite Aid Pharmacy | 200 mg | — | Tablet or Pill |
| Hair, Skin & Nails Formula● OTHER INGREDIENTS (2) | GNC Women's | 200 mg | — | Other (e.g. tea bag) |
| Anti-Oxidant● OTHER INGREDIENTS (2) | Ultimate Nutrition Platinum Series | 200 mg | — | Tablet or Pill |
| Liver Support | LES Labs | 200 mg | — | Capsule |
| Immunace● OTHER INGREDIENTS (2) | NaturesPlus | 200 mg | — | Tablet or Pill |
| Ultra Preventive Forte-Chel⚠ EXCEEDS UL (3)● OTHER INGREDIENTS (2) | Douglas Laboratories | 190 mg | — | Tablet or Pill |
| Ultra Preventive Forte-Chel (Capsules)⚠ EXCEEDS UL (3)● OTHER INGREDIENTS (2) | Douglas Laboratories | 190 mg | — | Capsule |
| Cardio Clear | Progressive Professional from Progressive Laboratories | 167 mg | — | Capsule |
| Amino Complex Lemon Flavored | Thorne | 150 mg | — | Powder |
| Redox● OTHER INGREDIENTS (1) | Douglas Laboratories | 150 mg | — | Capsule |
| Hair, Skin & Nails● OTHER INGREDIENTS (2) | Natural Factors WS WomenSense | 150 mg | — | Capsule |
| Immune Support● OTHER INGREDIENTS (1) | NaturesPlus | 150 mg | — | Tablet or Pill |
| Grey Hair Formula | SuperSmart | 150 mg | — | Capsule |
| Recancostat Powder Unflavored● OTHER INGREDIENTS (1) | Integrative Therapeutics | 140 mg | — | Powder |
| Lustre● OTHER INGREDIENTS (2) | Source Naturals | 133 mg | — | Tablet or Pill |
| PaleoCleanse Functional Detoxification Powder | Designs for Health | 125 mg | — | Powder |
| Hair & Nails Formula | SuperSmart | 120 mg | — | Capsule |
| Amino Fuel 1000● OTHER INGREDIENTS (4) | Twinlab | 111 mg | — | Tablet or Pill |
| Fabulous Hair● OTHER INGREDIENTS (2) | Logos Nutritionals | 100 mcg | — | Tablet or Pill |
| GC-MSM 3550 | Progressive Professional from Progressive Laboratories | 100 mg | — | Capsule |
| Joint n-11⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Zenith Labs | 100 mg | — | Capsule |
| Hair revital x● OTHER INGREDIENTS (2) | Zenith Labs | 100 mg | — | Capsule |
| Men's Ultra Hair Plus● OTHER INGREDIENTS (2) | NaturesPlus | 100 mg | — | Tablet or Pill |
| Hair Renew Formula● OTHER INGREDIENTS (1) | Terry Naturally | 100 mg | — | Softgel Capsule |
| Liquid Hair Skin & Nails● OTHER INGREDIENTS (1) | Nature's Answer | 100 mg | — | Liquid |
| Ultra Hair● OTHER INGREDIENTS (2) | NaturesPlus | 100 mg | — | Tablet or Pill |
| Ultra Hair Plus with MSM● OTHER INGREDIENTS (2) | NaturesPlus | 100 mg | — | Tablet or Pill |
| Ultra NourishHair● OTHER INGREDIENTS (3) | GNC Men's | 100 mg | — | Other (e.g. tea bag) |
| Women's Ultra Hair Plus● OTHER INGREDIENTS (2) | NaturesPlus | 100 mg | — | Tablet or Pill |
| Hair Support● OTHER INGREDIENTS (1) | NaturesPlus AgeLoss | 100 mg | — | Tablet or Pill |
| Hair Revitalizing Formula● OTHER INGREDIENTS (3) | Swanson | 100 mg | — | Tablet or Pill |
| Nails● OTHER INGREDIENTS (2) | Viva Vitamins | 100 mg | — | Tablet or Pill |
| Viral-Protec● OTHER INGREDIENTS (3) | Xtendlife | 99 mg | — | Tablet or Pill |
| Immu-Stay | Xtendlife | 99 mg | — | Capsule |
| Oxi-Plus● OTHER INGREDIENTS (1) | Priority One Nutritional Supplements | 99 mg | — | Capsule |
| UltraCleanse Plus● OTHER INGREDIENTS (2) | Akasha Naturals | 85 mg | — | Powder |
| UltraClear Plus Natural Berry Flavor● OTHER INGREDIENTS (2) | Metagenics | 85 mg | — | Powder |
| UltraClear Plus Vanilla Flavor● OTHER INGREDIENTS (2) | Metagenics | 85 mg | — | Powder |
| UltraClear Plus pH Vanilla Flavor● OTHER INGREDIENTS (2) | Metagenics | 85 mg | — | Powder |
| Prenatal Core Minerals● OTHER INGREDIENTS (2) | USANA | 80 mg | — | Tablet or Pill |
| HealthPak● OTHER INGREDIENTS (2) | USANA | 80 mg | — | Other (e.g. tea bag) |
| Arthro-Syn⚠ EXCEEDS UL● OTHER INGREDIENTS (1) | Douglas Laboratories | 75 mg | — | Capsule |
| Inflamzyme● OTHER INGREDIENTS (2) | Integrative Therapeutics | 75 mg | — | Tablet or Pill |
| Vision Maxx● OTHER INGREDIENTS (2) | DC | 60 mg | — | Capsule |
| OptiCleanse Plus Rice Raspberry Lemonade | XYMOGEN | 55 mg | — | Powder |
| Spectra● OTHER INGREDIENTS (2) | DaVinci Laboratories | 50 mg | — | Tablet or Pill |
| Spectra Without Copper And Iron● OTHER INGREDIENTS (2) | DaVinci Laboratories Of Vermont | 50 mg | — | Tablet or Pill |
| Total Balance Men's Premium● OTHER INGREDIENTS (2) | Xtendlife | 50 mg | — | Tablet or Pill |
| Nufolix● OTHER INGREDIENTS (5) | Pharmaxa Labs | 50 mg | — | Tablet or Pill |
| Total Balance Women's Premium● OTHER INGREDIENTS (2) | Xtendlife | 50 mg | — | Tablet or Pill |
| Cell Support⚠ EXCEEDS UL● OTHER INGREDIENTS (1) | DaVinci Laboratories Of Vermont | 50 mg | — | Capsule |
| Maximum Hair● OTHER INGREDIENTS (2) | Supplement Spot | 50 mg | — | Tablet or Pill |
| Blood Pressure Support● OTHER INGREDIENTS (2) | NaturesPlus AgeLoss | 50 mg | — | Tablet or Pill |
| Total Balance Unisex Premium● OTHER INGREDIENTS (2) | Xtendlife | 50 mg | — | Tablet or Pill |
| Skin, Hair & Nails● OTHER INGREDIENTS (2) | Bronson Laboratories | 50 mg | — | Capsule |
| Hair, Skin & Nails● OTHER INGREDIENTS (2) | Dr. Rico Perez | 50 mg | — | Capsule |
| Beau-T | LifeSeasons Therapeutics | 50 mg | — | Capsule |
| Glucosamine Complex● OTHER INGREDIENTS (1) | Genestra Brands | 50 mg | — | Capsule |
| Ultra Man Max⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Puritan's Pride | 50 mg | — | Other (e.g. tea bag) |
| Men's Vitality Complex⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Esmond Natural | 50 mg | — | Tablet or Pill |
| Vegan Hair Nails & Skin● OTHER INGREDIENTS (2) | DEVA | 50 mg | — | Tablet or Pill |
| Genessentials OS-1⚠ EXCEEDS UL● OTHER INGREDIENTS (1) | DaVinci Laboratories Of Vermont | 50 mg | — | Capsule |
| Hair Vitamins● OTHER INGREDIENTS (2) | Rise-N-Shine | 50 mcg | — | Tablet or Pill |
| Spectra Man● OTHER INGREDIENTS (2) | DaVinci Laboratories | 50 mg | — | Tablet or Pill |
| Hema-Plex Tablets⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | NaturesPlus | 50 mg | — | Tablet or Pill |
| Spectra Woman● OTHER INGREDIENTS (1) | DaVinci Laboratories | 50 mg | — | Tablet or Pill |
| Hema-Plex Capsules⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | NaturesPlus | 50 mg | — | Capsule |
| CoQ10 Mitochondrial Energy Complex | NeoLife Nutritionals | 50 mg | — | Softgel Capsule |
| Hema-Plex Softgels⚠ EXCEEDS UL | NaturesPlus | 50 mg | — | Softgel Capsule |
Whey Protein Gold Isolate Plus Natural Chocolate Flavor
● OTHER INGREDIENTS (1)
California Academy of Health458 mg— DVPowder
Ultra-Guard Low Allergenicity Antioxidant
● OTHER INGREDIENTS (2)
Douglas Laboratories200 mg— DVTablet or Pill
Ultra Preventive Forte-Chel
⚠ EXCEEDS UL (3)
● OTHER INGREDIENTS (2)
Douglas Laboratories190 mg— DVTablet or Pill
Ultra Preventive Forte-Chel (Capsules)
⚠ EXCEEDS UL (3)
● OTHER INGREDIENTS (2)
Douglas Laboratories190 mg— DVCapsule
Spectra Without Copper And Iron
● OTHER INGREDIENTS (2)
DaVinci Laboratories Of Vermont50 mg— DVTablet or Pill
Genessentials OS-1
⚠ EXCEEDS UL
● OTHER INGREDIENTS (1)
DaVinci Laboratories Of Vermont50 mg— DVCapsule
Frequently Asked Questions
How many products contain L-Cysteine?
There are 436 supplement products containing L-Cysteine from 112 brands in the NIH DSLD database.
What is the average L-Cysteine dosage?
The average L-Cysteine dosage across supplement products is 117.18 mg. Dosages range from 0 to 1000 mg.
What is the most common form for L-Cysteine supplements?
The most common product form for L-Cysteine supplements is Tablet or Pill.
What brands make L-Cysteine supplements?
There are 112 brands that make supplements containing L-Cysteine in the NIH DSLD database.
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Quick Facts
- Products
- 436
- Brands
- 112
- Avg Dose
- 117.18 mg
- Common Form
- Tablet or Pill
- Category
- amino acid