🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 40% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

4 Capsule(s) Serving Size
50 Servings
Botanical with Nutrients Product Type
40% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
500 mg (556% DV)
900 mcg (3000% DV)
📊 30.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.9mg
Calcium
16 mg (1% DV)
70 mcg (127% DV)
✅ 1.3× RDA — within safe limits 📚 172 studies (Tier A: 0, B: 67)
RDA 0.055mg This product: 0.07mg UL 0.4mg
Kirkman Proprietary Blend
625 mg

Other Ingredients

Hypromellose Water Silicon Dioxide

Label Claims — Verification

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 Adult (18 - 50 Years) Women (not pregnant or lactating) No Allergies Gluten Free Dairy Free

Product Information

📋 Directions for Use

Suggested use: take four capsules daily or as directed by a physician.

⚠️ Warnings & Precautions

Keep out of the reach of children. Formulated for children and adults four years and older. For children under four, consult a physician.

Caution: do not use this product if you are pregnant or lactating.

🧪 Formulation Notes

Free of: milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soy, and sesame

Hypoallergenic Supports the immune system and yeast control

Gluten-free

Additional Information

Important: Store in a cool dry place and tightly capped.

Ultra Tested cGMP

503.694.1600

Product Details

UPC / SKU 8 12325 02452 0
DSLD Entry Date 2024-08-22
Product Type Botanical with Nutrients
Form Capsule
Brand Kirkman
DSLD ID 317798
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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