Home/ Supplements/ Electrolytes/ 100% Pure L-Cysteine 500 Milligrams

100% Pure L-Cysteine 500 Milligrams

product on market Capsule NutraBio Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

L-Cysteine is a precursor to glutathione, an antioxidant involved in cellular protection. Research evidence for its standalone use in dietary supplements is limited. This ingredient is generally considered safe for consumption at standard dosages.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for 100% Pure L-Cysteine 500 Milligrams
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Vegetable Capsule(s)
Serving Size
150
Servings
Amino acid/Protein
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)

Other Ingredients

Vegetable Capsule
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

1 capsule 1-2x daily Suggested Use: As a dietary supplement, take 1 serving up to 2 times daily between meals, or as directed by your physician. If you experience stomach irritation, take with meals.

Warnings & Precautions

Warning: Not intended for use by persons under the age of 18. Keep out of the reach of children.

If you are pregnant, breast feeding, have known medical conditions (including kidney or liver disease) or are taking prescription or OTC medication(s) consult with your health care practitioner before using this product.

Formulation Notes

This product is Kosher, Hypoallergenic, Non-GMO, Gluten Free and BSE/TSE Free.

This product is Kosher, Hypoallergenic, Non-GMO, Gluten Free and BSE/TSE Free.

This product is Kosher, Hypoallergenic, Non-GMO, Gluten Free and BSE/TSE Free.

Pharmaceutical Free Form Amino Acid

No Fillers ~ No Exipients ~ No Additives

Additional Information

Manufactured in a GMP & FDA inspected facility

150 Servings 500 Milligrams

TRUE LABEL FULL LABEL DISCLOSURE

OU

Vegetable Capsule

Store in a cool dry place.

Since 1996

24266-003 B20148-001

Made in USA

Made in a GMP & FDA inspected facility

Metadata

Product Details

UPC / SKU6 49908 24266 4
DSLD Entry Date2015-10-22
Product TypeAmino acid/Protein
FormCapsule
BrandNutraBio
DSLD ID51131
Data Updated2026-04-11
Research

Research Evidence

849
Research Sources
56
Avg Quality
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)
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025 PubMed DOI
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008 PubMed DOI
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023 PubMed DOI
A Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2019 PubMed DOI
A The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021 PubMed DOI
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
View all evidence for Electrolytes →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.