Life Extension, Vitamin C with Dihydroquercetin, 1000 mg, 60 Vegetarian Tablets

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  • Immune Support & Synergistic Antioxidants
  • Dietary Supplement
  • Non-GMO

Dihydroquercetin-3-rhamnoside (D-3-R) is a flavonoid and potent water soluble antioxidant that is synergistic with Vitamin C. Unlike many flavonoids, D-3-R is very bioavailable. Professor Szent-Gyorgyi, the recipient of the Nobel Prize for Vitamin C, categorized flavonoids such as D-3-R as "vitamin P," making Vitamin C more biologically active and available.

Vitamin C with Dihydroquercetin is an enhanced, high-potency vitamin C supplement. A powerful antioxidant with profound whole body health benefits, vitamin C supports immune health, iron uptake, collagen formation, and more. And we’ve combined vitamin C with a flavonoid oxidative stress modulator called dihydroquercetin to complement vitamin C’s health benefits.  

Benefits at a Glance:

  • Combines vitamin C and dihydroquercetin antioxidants
  • High-potency formula delivers 1,000 mg of vitamin C
  • Encourages healthy immune system function
  • Promotes healthy iron uptake and collagen formation
  • Dihydroquercetin complements vitamin C

More facts about Vitamin C with Dihydroquercetin

Vitamin C is a powerful antioxidant that provides profound whole-body health benefits.  And we’ve combined 1,000 mg of vitamin C with a flavonoid called dihydroquercetin. Flavonoids boost the body’s defenses against free radicals, complementing vitamin C’s activity.

Antioxidant protection, immune health, and more

Our bodies can’t manufacture vitamin C, so we have to get it from foods or supplements. And getting enough vitamin C is important, because it is so much more than just an antioxidant:  

Vitamin C supports immune system health,  encourages iron absorption while inhibiting iron oxidation,  helps the body manage stress,3,4 and is necessary for collagen formation, a primary component of the connective tissue found nearly everywhere in our body.

Dihydroquercetin complements vitamin C

Vitamin C’s biological activity is complemented by the health benefits of the flavonoid dihydroquercetin. In fact, vitamin C and bioflavonoids are often present together in healthy foods such as fruits and vegetables, notably including citrus fruits.1 
Like vitamin C, dihydroquercetin is much more than just an antioxidant. It has been studied for a role in multiple conditions associated with aging, as well as for its inflammation-modulating and detoxification effects.

Get more out of your vitamin C

Combining vitamin C with flavonoids like dihydroquercetin replicates the way this nutrient is found in nature and optimizes the beneficial effects of vitamin C. Vitamin C with Dihydroquercetin is a supercharged, high-potency, once-a-day vitamin C formula. Try it today!

Suggested Use

Read the entire label and follow the directions carefully prior to use.

Take one (1) tablet daily with food, or as recommended by a healthcare practitioner.

Other Ingredients

Microcrystalline cellulose, stearic acid, croscarmellose sodium, hydroxypropyl methylcellulose, vegetable stearate, coating (hydroxypropyl methylcellulose, glycerin), silica.


Store tightly closed in a cool, dry place.

  • Keep out of reach of children.
  • Do not exceed recommended dose.
  • Do not purchase if outer seal is broken or damaged.
  • When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.