🟢 88/100

This product is generally safe

  • Niacin: 80mg is 2.3× the Tolerable Upper Intake Level (35mg)
  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 62% of ingredients have research evidence
C Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Niacin: 80mg is 2.3× the Tolerable Upper Intake Level (35mg)
ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed

Label Data

2 Veggie Capsule(s) Serving Size
60 Servings
Other Combinations Product Type
62% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin A
3000 mcg (333% DV)
Vitamin C
200 mg (222% DV)
10 mcg (50% DV)
✅ Within RDA (0.7× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.01mg UL 0.1mg
67 mg (447% DV)
📊 4.5× RDA — above typical dose (UL: 1000 mg) 📚 177 studies (Tier A: 3, B: 90)
RDA 15mg This product: 67mg UL 1000mg
40 mg (3333% DV)
📊 33.3× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 40mg
40 mg (3077% DV)
📊 30.8× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 40mg
80 mg (500% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 2.3× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 80mg UL 35mg
40 mg (2353% DV)
📊 30.8× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 40mg UL 100mg
Quatrefolic
125 mcg DFE (31% DV)
500 mcg (20833% DV)
📊 208.3× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.5mg
40 mcg (133% DV)
✅ 1.3× RDA — within safe limits 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.04mg
80 mg (1600% DV)
📊 16.0× RDA — above typical dose 📚 1 studies — no high-quality reviews
RDA 5mg This product: 80mg
80 mg (15% DV)
✅ Within RDA (0.1× RDA of 550 mg) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 80mg UL 3500mg
Calcium
24 mg (2% DV)
15 mg (136% DV)
✅ 1.4× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 15mg UL 40mg
Proprietary Blend
275 mg

Other Ingredients

Hypromellose Dicalcium Phosphate Microcrystalline Cellulose Leucine Silicon Dioxide

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (83% of products) Nutrient (54% of products)

Target Groups

Children 4 or More Years of Age Kosher Women (not pregnant or lactating)

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take two (2) capsules in the morning with breakfast. Dosage may be increased as directed by a healthcare practitioner.

⚠️ Warnings & Precautions

Double-sealed for your protection. Do not use if outer seal is broken or missing.

Caution: Keep out of reach of children.

Not to be taken by pregnant or lactating women.

Made in a GMP facility that processes egg, fish, milk, peanut, sesame, shellfish, soy, tree nut and wheat products.

🧪 Formulation Notes

Our products contain organically grown herbs, when available.

Certified Kosher. Shield Star K (Kosher) Parve

Made in the U.S.A.

Asian ginseng root Pumpkin seed Vitamin A, C, D, E And more...

Additional Information

Mineral Complement: 05008 essential minerals - 120 tabs 05009 essential minerals - 240 tabs

Consumer Information Services Voice Mail: 800-845-2730 www.michaelshealth.com

Shield Star K (Kosher) Parve

Family owned and operated.

Product Details

UPC / SKU 7 55929 04111 4
DSLD Entry Date 2023-11-22
Product Type Other Combinations
Form Capsule
DSLD ID 303357
Data Updated 2026-04-11

Research Evidence

371 Research Sources
54 Avg Quality Score
148 Meta Analysis
82 Systematic Review
71 Rct
62 Clinical Trial
2 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Other
1 Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021
View all evidence for Vitamin C →

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