L-Cysteine 500 mg
100/100
This product looks safe
- No ingredients exceed tolerable upper intake levels
- 100% of ingredients have research evidence
A
Label Compliance Grade
Product Label
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Label Data
1 Capsule(s)
Serving Size
Amino acid/Protein
Product Type
100%
Evidence Coverage
Supplement Facts — Evidence Check
500 mg
📊 Market median: 4002.0mg (1 products)
📚 20 studies (Tier A: 0, B: 2)
Other Ingredients
Kosher Vegetable Capsules
Vegetable Magnesium Stearate
Silica
Vegetable Cellulose
Label Claims — Verification
❓
Nutrient
❓
All Other
All Other (99% of products)
Structure/Function (85% of products)
Nutrient (54% of products)
Approved Health (3% of products)
Target Groups
Vegan
Vegetarian
Adult (18 - 50 Years)
Kosher
Gluten Free
Dairy Free
Sugar Free
Product Information
📋 Directions for Use
Directions: As a dietary supplement, take one capsule daily or as directed by a healthcare practitioner.
🧪 Formulation Notes
Bluebonnet’s L-Cysteine 500 mg capsules provide the pharmaceutical grade, free-form amino acid L-Cysteine HCI in its purest crystalline form from Ajinomoto.
Made with Non GMO ingredients
Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat and soybeans. Also free of corn, yeast, gluten, barley, rice, sodium and sugar.
Bluebonnet’s KOF-K Certification #K-0000700
Additional Information
Available in easy-to-swallow vegetable capsules for maximum assimilation and absorption.
0038B
Made with Non GMO ingredients
Free-form amino acid
Vegan
Vegan
K Parve
Gluten free
Product Details
UPC / SKU
7 43715 00038 4
DSLD Entry Date
2018-04-25
Product Type
Amino acid/Protein
Form
Capsule
Brand
Bluebonnet
DSLD ID
176394
Data Updated
2026-04-11
Research Evidence
849
Research Sources
56
Avg Quality Score
450
Meta Analysis
152
Rct
137
Systematic Review
73
Clinical Trial
11
Regulatory Source
7
Other
7
Guideline
3
Openfda Safety
2
Cochrane Review
2
Observational
A
Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
A
Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
A
Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
A
Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
A
Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
A
Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
A
Calcium and vitamin D for increasing bone mineral density in premenopausal women
A
Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis
A
The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis
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