IMMUNE SUPPORT & BEYOND
Vitamin C strengthens the immune system and combats oxidizing free radicals. The same is true of quercetin, however many supplements have trouble making these nutrients absorbable. Our quercetin is 50 times more bioavailable than conventional quercetin since it is encased in a phytosome.
VITAMIN C FOR SENSITIVE STOMACHS
Vitamin C is extremely beneficial for your health, but too much of it might cause gastrointestinal distress. In this formulation, vitamin C is combined with calcium, magnesium, and piperine to protect sensitive stomachs and improve nutritional absorption.
FOUND TOEGTHER IN FRUITS & VEGGIES
Quercetin and vitamin C are frequently found together in wholesome foods like citrus fruit and some vegetables. They enhance one another. The antioxidant quercetin supports a positive inflammatory response. Collagen synthesis and proper iron intake are both encouraged by vitamin C.
INGREDIENTS MATTER
Derived from the purest, most powerful raw materials possible, as your body deserves. This product is gluten-free and non-GMO-certified. Every product we create is made in the USA, and a Certificate of Analysis is available.
LIVE YOUR HEALTHIEST LIFE
We have been creating cutting-edge, efficient formulas with the highest standards and on the basis of the most recent research for more than 40 years. We believe that robust scientific inquiry is the way to bring us there and that the solutions to a better, richer life are within reach. Or, to achieve optimum absorption and efficacy, formulations are made employing the precise substances and dosages utilized in the studies that served as their inspiration.
| Country of Manufacture | United States |
|---|---|
| Product Condition | NewCondition |
| Feature | No |
| Color | No |
| Size | No |
| UPC Code | 737870222965 |
| GTIN | 737870222965 |
| Maker | Life Extension |
| Manufacturer Product ID | No |
| Quantity in Box/Display | No |
| Serving Size | No |
| Flavor | No |
| Scent | No |
| Gender | No |
| Expiry Date | No |
| Time Needed for Effectiveness | No |
| Dietary Factors | No |
| Product Features | No |
| Product Type | No |
-
Life Extension D, L-Phenylalanine 500mg 100 Vegetarian Capsules
Review and collect 75 points.$18.50 -
Life Extension 100 Veggie Caps Decaffeinated Mega Green Tea Extract
Review and collect 75 points.$27.55 -
-
Life Extension Brain Health Support DMAE Bitartrate 150mg 200 Caps
Review and collect 75 points.$22.55
Check items to add to the cart or select all
Customers who bought this product also commonly purchased the following combination of items.
- This Item: Life Extension Fast-C & Bio-Quercetin Phytosome – 60 Vegetarian Tablets
-
Life Extension Cognitex Elite Pregnenolone 60 Vegetarian Tablets
-
Life Extension Rhodiola Extract 250mg 60 Energy Boost Vegetarian Caps
-
Life Extension Blueberry Extract 60 Veggie Caps Brain Health Support
-
Questions:
-
1voteA: Fast-C uses a proprietary delivery system that allows vitamin C to be absorbed more rapidly than standard ascorbic acid tablets. The fast-dissolving tablet format starts working quickly. Combined with Bio-Quercetin Phytosome, it provides a powerful immune and antioxidant formula.Posted by on Monday, March 2, 2026
-
1voteA: Vitamin C and quercetin are synergistic — vitamin C helps recycle and regenerate quercetin, while quercetin enhances vitamin C effectiveness. Together, they provide superior immune support and antioxidant protection compared to either nutrient alone.Posted by on Monday, March 2, 2026
-
1voteA: Take 2 tablets daily with food. Each serving provides a clinically relevant dose of both fast-absorbing vitamin C and Bio-Quercetin Phytosome. The tablets dissolve quickly in the stomach for rapid nutrient delivery.Posted by on Monday, March 2, 2026
