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Optimal Vitamin C Plus

product on market Powder Seeking Health Safety: 100/100
100/100

This product looks safe

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

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Vitamin C, magnesium, and potassium are supported by strong evidence for immune function and electrolyte balance. Quercetin provides moderate evidence for antioxidant support, while calcium supports bone health. Overall, these ingredients are well-researched, though the specific combination lacks extensive clinical evidence.

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

Label

Product Label

Label for Optimal Vitamin C Plus
Open Full PDF View on NIH DSLD →
Details

Label Data

4.1 Gram(s)
Serving Size
40
Servings
Other Combinations
Product Type
33%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
2600 mg (2889% DV)
Calcium
28 mg (2% DV)
220 mg (52% DV)
Within RDA (0.5× RDA) 316 studies (A:8, B:159)
Potassium
99 mg (2% DV)
20 mg
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
Luteolin
20 mg

Other Ingredients

Malic Acid Monk Fruit Extract Lemon Flavor, Natural
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested use: Mix 1 scoop daily in filtered water or beverage of choice, or use as directed by your healthcare professional.

Warnings & Precautions

Caution: Children and pregnant or lactating women should consult their healthcare professional prior to use. Storage: Keep closed in a cool, dry place out of reach of children.

Caution: Children and pregnant or lactating women should consult their healthcare professional prior to use.

Do not use if tamper seal is damaged.

Formulation Notes

Optimal Vitamin C Plus supports a healthy immune system and seasonal respiratory wellbeing. This formula is buffered with calcium, magnesium, and potassium for GI comfort. The added bioflavonoids support Vitamin C absorption and utilization.

Does not contain: Milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soy, gluten, GMO, artificial colors, or artificial flavors.

Manufactured in the USA from globally sourced ingredients Third-party independently tested

Optimal Vitamin C with bioflavonoids Buffered powder

Optimal Vitamin C Plus meets or exceeds cGMP Quality Standards.

Additional Information

Storage: Keep closed in a cool, dry place out of reach of children.

Find other effective health products at: www.seekinghealth.com This package is completely recyclable

Metadata

Product Details

UPC / SKU8 10007 52129 9
DSLD Entry Date2024-12-21
Product TypeOther Combinations
FormPowder
DSLD ID322696
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.