🟢 97/100

This product looks safe

  • Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
  • 82% of ingredients have research evidence
C Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)

Label Data

1 Tablet(s) Serving Size
Other Combinations Product Type
82% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
600 mg (1000% DV)
45 IU (150% DV)
✅ 2.0× RDA — within safe limits 📚 177 studies (Tier A: 3, B: 90)
RDA 15mg This product: 30.150000000000002mg UL 1000mg
15 mg (1000% DV)
📊 12.5× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 15mg
10.2 mg (600% DV)
📊 7.8× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 10.2mg
100 mg (500% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 2.9× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 100mg UL 35mg
10 mg (500% DV)
📊 7.7× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 10mg UL 100mg
400 mcg (100% DV)
✅ Within RDA (1.0× RDA of 0.4 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 0.4mg UL 1.0mg
6 mcg (100% DV)
✅ 2.5× RDA — within safe limits 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.006mg
300 mcg (100% DV)
📊 10.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.3mg
25 mg (250% DV)
📊 5.0× RDA — above typical dose 📚 1 studies — no high-quality reviews
RDA 5mg This product: 25mg
22.5 mg (150% DV)
✅ 2.0× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 22.5mg UL 40mg

Other Ingredients

Microcrystalline Cellulose Croscarmellose Sodium Stearic Acid Calcium Silicate Vegetable Magnesium Stearate Silicon Dioxide Hypromellose Polydextrose Blue #1 Lake Yellow #6 Lake Talc Maltodextrin Medium Chain Triglycerides Blue #2 Lake Titanium Dioxide

Label Claims — Verification

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

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Directions: Take one tablet daily with a meal.

⚠️ Warnings & Precautions

Tamper resistant - Do not use if imprinted safety seal under cap is broken or missing

Keep out of reach of children

🧪 Formulation Notes

Vitamin formula with Zinc Supplement

Additional Information

High potency

Keep bottle tightly closed. Store between 15(0)-30(0)C (59(0)-86(0)F).

100

Rev. 07/15 R-92 Re-order No. 370352

Product Details

UPC / SKU 0 05363 35708 2
DSLD Entry Date 2019-11-21
Product Type Other Combinations
Form Tablet or Pill
Brand Rugby
DSLD ID 200943
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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