What the official page says
The official panel lists 1,000 mg of ascorbic acid and a proprietary Bio-Quercetin blend containing quercetin and fenugreek galactomannans. The blend amount and nutrient amount are reported separately.
What to verify next
Vitamin C is an essential nutrient involved in collagen formation and antioxidant biology, but high supplemental doses can be unnecessary or poorly tolerated. Quercetin research is preparation- and outcome-dependent.
How the formula may work
Vitamin C participates in collagen formation, iron absorption and antioxidant systems. Quercetin and fenugreek-derived galactomannans add a botanical delivery component, but the combined mechanism is not evidence that the tablet prevents or treats infection, allergy or another condition.
Active ingredients
Ingredient names and amounts follow the official source where disclosed. Missing values are not inferred.
Other ingredients / excipients
- Vitamin C 1,000 mg
- Bio-Quercetin blend 15 mg
- 60 vegetarian tablets Item 02228
Label serving direction
Take one tablet daily with food, or as recommended by a healthcare practitioner.
Primary health-goal users
- Adults comparing high-dose vitamin C tablets and lower-dose options
- Readers who want the quercetin blend and its listed fractions disclosed
- People able to review kidney-stone, iron-overload, digestive and medication context
Potential benefits and evidence framing
- Provides 1,000 mg vitamin C per tablet and a labelled botanical blend
- Supports normal collagen, antioxidant and iron-absorption biology when appropriate
- NIH ODS notes nutrient roles and upper-limit considerations; quercetin evidence remains preparation-specific
Possible adverse effects
- High vitamin C can cause diarrhea, nausea, abdominal cramps or heartburn
- People prone to kidney stones or iron overload may need special review
- Fenugreek, quercetin or excipients can cause allergy or digestive sensitivity
Contraindications and precautions
- Review kidney-stone history, hemochromatosis or other iron-overload disorders with a clinician
- Ask about interactions with iron, chemotherapy, statins or other medicines when relevant
- Pregnancy, lactation and persistent symptoms need individual professional guidance
Questions to keep visible
Review kidney-stone history, iron-overload disorders, gastrointestinal sensitivity, pregnancy, lactation and medicines with a qualified professional before using a high-dose tablet.
Evidence and source trail
- Life Extension — Vitamin C and Bio-Quercetin Phytosome product page Source type: Official product page · Source language: English · Last checked: 2026-08-04
- NIH ODS — Vitamin C Source type: Independent public-health reference · Source language: English · Last checked: 2026-08-04