🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 53% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

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Label Data

2 Tablet(s) Serving Size
56 Servings
Other Combinations Product Type
53% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
300 mg (333% DV)
Calcium
113 mg (9% DV)
250 mcg (167% DV)
✅ 1.7× RDA — within safe limits 📚 243 studies (Tier A: 4, B: 133)
RDA 0.15mg This product: 0.25mg UL 1.1mg
113 mg (27% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 113mg
10 mg (91% DV)
✅ Within RDA (0.9× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 10mg UL 40mg
100 mcg (182% DV)
✅ 1.8× RDA — within safe limits 📚 172 studies (Tier A: 0, B: 67)
RDA 0.055mg This product: 0.1mg UL 0.4mg
1 mg (111% DV)
✅ 1.1× RDA — within safe limits 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 1mg UL 10mg
1 mg (43% DV)
✅ Within RDA (0.4× RDA of 2.3 mg) 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 1mg UL 11mg
150 mcg (429% DV)
📊 4.3× RDA — above typical dose 📚 197 studies (Tier A: 1, B: 55)
RDA 0.035mg This product: 0.15mg
25 mcg (56% DV)
✅ Within RDA (0.6× RDA of 0.045 mg) 📚 2 studies — no high-quality reviews
RDA 0.045mg This product: 0.025mg UL 2mg
1.5 mg
📊 Market median: 3.0mg (58 products) 📚 2 studies — no high-quality reviews
This product: 1.5mg UL 20mg
2 mg
📊 Market median: 108.0mg (8 products) 📚 9 studies (Tier A: 0, B: 4)
This product: 2mg
20 mcg
📊 Market median: 0.5mg (6 products) 📚 1 studies (Tier A: 0, B: 1)
This product: 0.02mg UL 1.8mg
Ultra Trace Minerals
1.5 mg
L-Cystine
80 mg

Other Ingredients

Microcrystalline Cellulose Cellulose, Modified Croscarmellose Sodium Ascorbyl Palmitate Maltodextrin Starch, Pregelatinized Silicon Dioxide Vanilla Extract Sunflower Lecithin Palm Olein Guar Gum

Label Claims — Verification

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

Target Groups

Adult (18 - 50 Years) Kosher

Product Information

📋 Directions for Use

Directions: Take two (2) tablets twice daily, preferably with food.

⚠️ Warnings & Precautions

Keep out of reach of children.

Consult your physician if you are pregnant, nursing, taking a prescription drug, or have a medical condition.

There is a safety seal under the cap. Do not use if the seal is broken or missing.

🧪 Formulation Notes

Laboratory tested. Quality guaranteed. Meets USP specification for uniformity, potency, and disintegration, where applicable.

OK (Kosher)

Premium broad-spectrum mineral support

Additional Information

Store below 25 degrees C.

OK (Kosher)

Discard seal, empty & replace cap Plastic bottle how2recycle.info

MWT Potency Guaranteed

Product Details

DSLD Entry Date 2025-02-23
Product Type Other Combinations
Form Tablet or Pill
Brand USANA
DSLD ID 322313
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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