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C-500 Complex

product on market Tablet or Pill NOW Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 20% of ingredients have research evidence
B Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Vitamin C and citrus bioflavonoids are supported by strong evidence for antioxidant activity and immune system support. Acerola, rose hips, and rutin provide additional sources of ascorbic acid and flavonoids. Overall, these ingredients are well-researched for their role in collagen synthesis and cellular protection.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for C-500 Complex
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
Other Combinations
Product Type
20%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
500 mg (556% DV)
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
Acerola powder
100 mg
Rose Hips powder
100 mg
10 mg
Market median: 500.0mg (19 products)

Other Ingredients

Cellulose Stearic Acid Silica Magnesium Stearate Vegetarian Coating
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Usage: Take 1 tablet 1 to 3 times daily.

Warnings & Precautions

Caution: For adults only.

Consult physician if pregnant/nursing, taking medication, or have a medical condition.

Keep out of reach of children.

Do not eat freshness packet. Keep in bottle.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Formulation Notes

NOW C-500 Complex is a blend of Acerola and Rose Hips (natural sources of Vitamin C) plus Citrus Bioflavonoids and Rutin which work synergistically to support Vitamin C utilization.

With Bioflavonoids, Acerola & Rose Hips

Non-GMO

Vegetarian/Vegan

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.

Additional Information

Vitamin C is a water soluble nutrient well known for its vital role in the immune system. Vitamin C is also necessary for the production of collagen (a structural protein in connective tissue) and is therefore important for skin, bone, and joint health. Vitamin C is needed for amino acid metabolism, neurotransmitter synthesis, and the utilization of many nutrients, such as folic acid and iron. It is also a highly effective antioxidant that can protect the body's cells and molecules from damage by free radicals and reactive oxygen molecules generated during normal metabolism and exposure to environmental stressors.

Tablet size

CODE 0660B V5

Antioxidant protection

Non-GMO

Vitamins Family owned since 1968.

Natural color variations may occur in this product.

Store in a cool, dry place after opening.

Please recycle.

GMP Quality Assured

Metadata

Product Details

UPC / SKU7 33739 00660 8
DSLD Entry Date2018-05-24
Product TypeOther Combinations
FormTablet or Pill
BrandNOW
DSLD ID177426
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
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 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
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 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.