Optimal Vitamin C
This product looks safe
- No ingredients exceed tolerable upper intake levels
- 25% of ingredients have research evidence
What the Evidence Says
AI-generated · Qwen 3.6 · methodologyVitamin C, quercetin, hesperidin, and rutin are bioflavonoids and antioxidants that support immune function and vascular health. There is strong evidence for the antioxidant properties of vitamin C, while research on the synergistic effects of combined flavonoids is moderate. The ingredient profile maintains a high safety rating.
AI-generated summary based on research evidence. Not medical advice.
Product Label
Label Data
Supplement Facts — Evidence Check
Other Ingredients
Label Claims — Verification
Product Information
Directions for Use
Suggested Use: As a dietary supplement take 4 grams (approx. one teaspoon) per day, or as directed by your health care practitioner.
Warnings & Precautions
Keep out of reach of children.
Formulation Notes
The Potassium Bicarbonate was added to this formula as a buffering agent. Quercetin, Hesperidin and Rutin are natural bioflavonoids found in citrus fruits. Quercetin is also found in red wine and tea.
Does Not Contain: Gluten.
Buffered Vitamin C powder
Additional Information
Storage: Store at room temperature.
Notice: This is a natural product that may exhibit color, taste and density variations from lot to lot. Optimal Vitamin C meets cGMP standards.
Physician formulated
Item CBF144-PL-4
Report any adverse reactions to 1-800-547-9812
Product Details
Research Evidence
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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.