🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

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Label Data

6 Capsule(s) Serving Size
30 Servings
Other Combinations Product Type
50% Evidence Coverage

Supplement Facts — Evidence Check

25 mcg (45% DV)
✅ Within RDA (0.5× RDA of 0.055 mg) 📚 172 studies (Tier A: 0, B: 67)
RDA 0.055mg This product: 0.025mg UL 0.4mg
N-Acetyl L-Cysteine
1500 mg
📊 Market median: 340.0mg (243 products) 📚 3 studies — no high-quality reviews
This product: 500mg
500 mg
📊 Market median: 500.0mg (159 products)
Median 500.0mg This product: 500mg
📊 Market median: 470.0mg (230 products) 📚 9 studies (Tier A: 3, B: 3)
This product: 500mg
📊 Market median: 250.0mg (562 products) 📚 53 studies (Tier A: 0, B: 19)
This product: 300mg
📊 Market median: 420.0mg (127 products) 📚 1 studies (Tier A: 0, B: 1)
This product: 150mg
📊 Market median: 500.0mg (115 products)
Median 500.0mg This product: 100mg

Other Ingredients

Micro Crystalline Cellulose Vegetable capsule

Label Claims — Verification

All Other
Structure/Function
All Other (98% of products) Structure/Function (79% of products) Nutrient (50% of products) Qualified Health (5% of products)

Target Groups

Adult (18 - 50 Years) Dairy Free

Product Information

📋 Directions for Use

Suggested use: Take 6 capsules daily with meals. Can be taken throughout the day or as directed by a health professional.

⚠️ Warnings & Precautions

Keep out of reach of children.

Warning: Consult your physician prior to using this product if you are pregnant, nursing, taking medication or have a medical condition.

🧪 Formulation Notes

Made in a GMP compliant facility in USA

Synergistic immune nutraceutical

No artificial colors, artificial flavors, milk or milk derivatives or sodium added.

Additional Information

Store in a cool, dry place with the lid tightly closed.

For re-order, visit: HoltraCeuticals.com

Product Details

DSLD Entry Date 2023-04-21
Product Type Other Combinations
Form Capsule
DSLD ID 271570
Data Updated 2026-04-11

Research Evidence

273 Research Sources
55 Avg Quality Score
131 Meta Analysis
61 Systematic Review
55 Rct
19 Clinical Trial
2 Regulatory Source
1 Cochrane Review
1 Other
1 Observational
1 Openfda Safety
A Selenium for preventing cancer
Meta Analysis The Cochrane database of systematic reviews 2018
A Selenium supplementation for the primary prevention of cardiovascular disease
Meta Analysis The Cochrane database of systematic reviews 2013
A Selenium supplementation for critically ill adults
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin E and the risk of prostate cancer: the Selenium and Vitamin E Cancer Prevention Trial (SELECT)
Rct JAMA 2011
B Selenium and prostate cancer: systematic review and meta-analysis
Meta Analysis The American journal of clinical nutrition 2012
B Selenium supplementation for Hashimoto's thyroiditis
Systematic Review The Cochrane database of systematic reviews 2013
B Pharmacological interventions for preventing dry mouth and salivary gland dysfunction following radiotherapy
Meta Analysis The Cochrane database of systematic reviews 2017
B Selenium, antioxidants, cardiovascular disease, and all-cause mortality: a systematic review and meta-analysis of randomized controlled trials
Meta Analysis The American journal of clinical nutrition 2020
B The effect of selenium supplementation on coronary heart disease: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) 2017
B Meta-analysis of selenium effects on the meat quality of broilers
Meta Analysis Poultry science 2024
View all evidence for Selenium →

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