🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 33% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

2 Capsule(s) Serving Size
25 Servings
Botanical with Nutrients Product Type
33% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
500 mg (833% DV)
900 mcg (300% DV)
📊 30.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.9mg
70 mcg (100% DV)
✅ 1.3× RDA — within safe limits 📚 172 studies (Tier A: 0, B: 67)
RDA 0.055mg This product: 0.07mg UL 0.4mg
📊 Market median: 500.0mg (115 products)
Median 500.0mg This product: 200mg
Pau d'Arco extract
200 mg
📊 Market median: 500.0mg (234 products) 📚 95 studies (Tier A: 0, B: 35)
This product: 100mg
Caprylic Acid
100 mg
Cranberry Extract
25 mg
Oregano
100 mg

Other Ingredients

Vitamin C Calcium Caprylate Olive leaf extract Pau d'Arco extract Goldenseal extract Oregano Di-Calcium Phosphate Crospovidone Cranberry Extract Microcrystalline Cellulose Silicon Dioxide Biotin Plant Cellulose Capsule

Label Claims — Verification

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

Target Groups

Adult (18 - 50 Years) No Allergies Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

SUGGESTED USE: 2-4 capsules daily or as directed by a physician.

⚠️ Warnings & Precautions

CAUTION: DO NOT USE IN PREGNANCY OR WHILE LACTATING.

KEEP OUT OF THE REACH OF CHILDREN.

🧪 Formulation Notes

CASEIN & GLUTEN FREE

HYPOALLERGENIC

DOES NOT CONTAIN: Sugar, starch, soy, wheat, casein, gluten, milk, preservatives, yeast, gelatin, flavorings, colorings, peanuts, tree nuts or fish.

Additional Information

Best Used by: December 2012

IMPORTANT: STORE IN A COOL DRY PLACE AND TIGHTLY CAPPED.

(503)694-1600

058/100

Product Details

DSLD Entry Date 2013-09-25
Product Type Botanical with Nutrients
Form Capsule
Brand Kirkman
DSLD ID 25463
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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