🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

4 Capsule(s) Serving Size
30 Servings
Other Combinations Product Type
50% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
200 mg (333% DV)
30 IU (100% DV)
✅ 1.3× RDA — within safe limits 📚 177 studies (Tier A: 3, B: 90)
RDA 15mg This product: 20.1mg UL 1000mg
75 mcg (100% DV)
✅ 1.4× RDA — within safe limits 📚 172 studies (Tier A: 0, B: 67)
RDA 0.055mg This product: 0.075mg UL 0.4mg
Organic Fruit and Vegetable Blend
2000 mg
100 mg
📊 Market median: 250.0mg (562 products) 📚 53 studies (Tier A: 0, B: 19)
This product: 100mg
100 mg
📊 Market median: 500.0mg (180 products) 📚 5 studies (Tier A: 0, B: 1)
This product: 100mg
100 mg
📊 Market median: 450.0mg (254 products) 📚 240 studies (Tier A: 0, B: 100)
This product: 100mg
Alpha Ketoglutaric Acid
50 mg
Citric Acid
50 mg
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 50mg
📊 Market median: 500.0mg (115 products)
Median 500.0mg This product: 70mg
📊 Market median: 200.0mg (198 products) 📚 6 studies — no high-quality reviews
This product: 12.5mg

Other Ingredients

Organic Fruits And Veggie Blend Milk Thistle Sodium Ascorbate Turmeric Ascorbic Acid L-Taurine Vitamin E Olive leaf extract Citric Acid Sodium Citrate Alpha Ketoglutaric Acid Silicon Dioxide Alpha Lipoic Acid Selenium

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) Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

Best Used by: March 2013

SUGGESTED USE: Four capsules daily for a specified period followed by an equal number of "off" days. Work with your physician to set up the appropriate schedule.

⚠️ Warnings & Precautions

KEEP OUT OF THE REACH OF CHILDREN.

🧪 Formulation Notes

CASEIN & GLUTEN FREE

FREE OF: Sugar, starch, gluten, milk, casein, soy, preservatives, yeast, gelatin, flavorings, colorings, fish, peanuts, tree nuts or egg.

Additional Information

0500-120

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

(503)694-1600

Product Details

DSLD Entry Date 2013-07-25
Product Type Other Combinations
Form Capsule
Brand Kirkman
DSLD ID 24055
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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