🟢 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

1 Capsule(s) Serving Size
360 Servings
Other Combinations Product Type
33% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
500 mg (556% DV)
Calcium
50 mg (4% DV)
📊 Market median: 500.0mg (283 products) 📚 173 studies (Tier A: 0, B: 62)
This product: 50mg

Other Ingredients

Cellulose

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) No Allergies Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

Suggested Use Consume one capsule daily. You can increase your intake as required or as guided by your physician.

🧪 Formulation Notes

Since 1979, unsurpassed purity, quality and efficacy. 100% solar production Zero-carbon footprint

100% solar

Mild non-acidic vitamin C Citrus bioflavonoids Calcium

Vitamin C 500 Complex is a pure, non-acidic vitamin C formula combined with naturally-occurring bioflavonoids. Unlike ordinary products, this formula’s vitamin C is uniquely non-acidic and therefore gentle even to the most sensitive stomach. This special formula promotes the greatest utilization of vitamin C without the stomach discomfort, loss of potency and rapid nutrient loss associated with ordinary ascorbic acid. Vitamin C is a powerful antioxidant that protects numerous body tissues and systems, including our immune, skeletal and circulatory systems, along with our heart, brain, liver, skin and eyes. Vitamin C is readily depleted by stress and although abundant in the healthiest of foods, it is sadly lacking from the typical American diet, which is why it has become among the most popular separate supplements in America. The calcium ascorbate form of vitamin C in this formula also provides a bonus of 50 milligrams of super-soluble, easily absorbed Calcium. It also comes with natural Citrus Bioflavonoids that are present in most Vitamin C rich foods.

Our Vitamin C 500 Complex also comes in small, soft, easy-to-swallow capsules that are guaranteed gentle even to sensitive stomachs.

Contains no additives or common allergens Contains no milk, soy, yeast, corn, wheat, gluten, sodium, salt, sugar, fat, cholesterol, color, preservative, common allergens, genetically modified (GMO) ingredients or manufacturing additives.

Additional Information

For questions about the use of this product call 800.800.1200. Questions? reorders? 800.800.1200 procaps.com

Andrew Lessman

Product Details

UPC / SKU 184029
DSLD Entry Date 2025-06-25
Product Type Other Combinations
Form Capsule
Brand ProCaps
DSLD ID 331617
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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