Home/ Supplements/ Vitamin C/ Ultra Potent-C 500

Ultra Potent-C 500

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

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 30% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Vitamin C and citrus bioflavonoids are supported by moderate evidence for antioxidant activity and immune function. L-lysine and niacin contribute to protein synthesis and cellular energy metabolism. Overall evidence coverage for this specific formulation is limited.

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

Label

Product Label

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

Label Data

1 Tablet(s)
Serving Size
90
Servings
Other Combinations
Product Type
30%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
500 mg (556% DV)
35 mg (219% DV)
2.5× RDA — within safe limits 196 studies (A:5, B:63)
Sodium
5 mg (1% DV)
16 mg
Market median: 500.0mg (159 products)
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
Market median: 99.0mg (503 products) 13 studies (A:0, B:3)
Alpha-D-Ribofuranose
6 mg
Xylitol
5 mg
L-Cysteine
4 mg
L-Glutathione
2 mg

Other Ingredients

Calcium Ascorbate Niacinamide Ascorbate Ascorbic Acid Sodium Ascorbate Magnesium Ascorbate L-Lysine Hydrochloride Ascorbyl Palmitate Citrus Bioflavonoid Complex Potassium Ascorbate Tetrasodium Pyrophosphate Alpha-D-Ribofuranose L-Cysteine Hydrochloride Xylitol L-Glutathione Microcrystalline Cellulose Cellulose Stearic Acid Croscarmellose Sodium Niacinamide Magnesium Stearate Hypromellose Medium Chain Triglyceride Hydroxypropyl Cellulose
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Take one tablet three times daily or as directed by your healthcare practitioner.

Warnings & Precautions

Caution: Keep out of the reach of children.

Practitioner exclusive

Formulation Notes

Ultra Potent-C 500 is a proprietary formulation designed to be gentle on the stomach and well-tolerated at high doses. Our vitamin C has been scientifically developed to enhance the absorption of vitamin C by white blood cells, a vital part of your immune system, when compared to ascorbic acid. Stomach friendly vitamin C for immune support

This product is non-GMO, gluten-free, and vegetarian.

This product is non-GMO, gluten-free, and vegetarian.

Certified Gluten Free GFCO.org (Gluten-Free Certification Organization)

Additional Information

Certified Gluten Free GFCO.org (Gluten-Free Certification Organization)

Metadata

Product Details

UPC / SKU7 55571 03051 1
DSLD Entry Date2023-10-24
Product TypeOther Combinations
FormTablet or Pill
BrandMetagenics
DSLD ID295871
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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Vitamin C research Best Vitamin C All Vitamin C products More from Metagenics View on NIH DSLD →

This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.