In Stock
Vitacost

Synergy®, Advan-C® Including Quercetin & Bioflavonoids, 90 Capsules

4.9 · 29 reviews
1,015 ₽

1,000 mg Per Serving Including Quercetin & Bioflavonoids Everyday Essentials Potency · Purity · Pride Gentle On The Stomach Antioxidant Support Dietary Supplement A superior vitamin C complex providing beneficial amounts of vitamin C in a non-acidic form that’s gentler on the digestive system and more highly absorbable than common vitamin C. Contains added antioxidants! What is Advan-C with Quercetin and Citrus Bioflavonoids? Advan-C with Quercetin and Citrus Bioflavonoids is a synergistically formulated combination of a gentler form of vitamin C plus citrus bioflavonoids and quercetin. Advan-C is an acid-neutralized form of vitamin C, meaning it’s non-irritating to your digestive system. Bioflavonoids are plant compounds known for their antioxidant benefits. They’re abundant in the pulp and rinds of citrus fruits as well as in other fruits, vegetables and teas. Quercetin is a type of bioflavonoid also found in plant foods (especially apples, onions and green and black teas), with antioxidant properties. What are the key benefits of Synergy Advan-C® with Quercetin & Citrus Bioflavonoids? Helps maintain healthy blood pressure already within normal range. Maintains a healthy cardiovascular system. Promotes the maintenance of healthy DNA. Maintains a healthy bladder wall. Promotes a healthy colon. Why is Synergy Advan-C® with Quercetin & Citrus Bioflavonoids your everyday essential? Delivers 1,000 mg of vitamin C per 2-capsule serving. Features Advan-C, a form of vitamin C that’s gentle on the digestive system and more absorbable than other forms of vitamin C. Provides 200 mg of citrus bioflavonoids and 200 mg of quercetin per serving. Incredible value compared to other vitamin C supplements.

International delivery

Shipping calculated at checkout

Returns & exchanges

Within 30 days of delivery

1,000 mg Per Serving Including Quercetin & Bioflavonoids Everyday Essentials Potency · Purity · Pride Gentle On The Stomach Antioxidant Support Dietary Supplement A superior vitamin C complex providing beneficial amounts of vitamin C in a non-acidic form that’s gentler on the digestive system and more highly absorbable than common vitamin C. Contains added antioxidants! What is Advan-C with Quercetin and Citrus Bioflavonoids? Advan-C with Quercetin and Citrus Bioflavonoids is a synergistically formulated combination of a gentler form of vitamin C plus citrus bioflavonoids and quercetin. Advan-C is an acid-neutralized form of vitamin C, meaning it’s non-irritating to your digestive system. Bioflavonoids are plant compounds known for their antioxidant benefits. They’re abundant in the pulp and rinds of citrus fruits as well as in other fruits, vegetables and teas. Quercetin is a type of bioflavonoid also found in plant foods (especially apples, onions and green and black teas), with antioxidant properties. What are the key benefits of Synergy Advan-C® with Quercetin & Citrus Bioflavonoids? Helps maintain healthy blood pressure already within normal range. Maintains a healthy cardiovascular system. Promotes the maintenance of healthy DNA. Maintains a healthy bladder wall. Promotes a healthy colon. Why is Synergy Advan-C® with Quercetin & Citrus Bioflavonoids your everyday essential? Delivers 1,000 mg of vitamin C per 2-capsule serving. Features Advan-C, a form of vitamin C that’s gentle on the digestive system and more absorbable than other forms of vitamin C. Provides 200 mg of citrus bioflavonoids and 200 mg of quercetin per serving. Incredible value compared to other vitamin C supplements.

Customer reviews

5.0
verified purchase

Great product for a great price packaged very well No issues I’ve been using it for almost 2 years. Trying to eat healthy and get my nutrients for my vitamins

8/19/2026
5.0
verified purchase
No side effects

Doesn't cause stomach digestive issues because its buffered correctly unike others

8/18/2026
5.0
verified purchase
Best Vitamin C supplement

I love the AdanC with Quercetin. It doesn't cause stomach upset, which some vitamin C supplements do. And adding the Quercetin is a perfect complement. We've been using it for years and it gets us through cold and flu season, keeping us more healthy!

8/17/2026
5.0
verified purchase
Added quercetin a plus

I love that this vitamin C contains quercetin and bioflavonoids. Quercetin is a zinc ionophore, so it helps my body to use zinc more effectively to fight viruses. Vitamin C is important for collagen synthesis, so I take this to make sure I'm covering my bases if my diet doesn't contain enough naturally.

8/13/2026
5.0
verified purchase
Great price

Good value for quality product. Stocked up and will reorder.

8/12/2026
5.0
verified purchase
Using this product last couple years -

Great product - changed from Ester C - The addition of Quertian is great anti-inflamatory & allergies

8/10/2026
5.0
verified purchase
Lovin it

I like this product because I get my vitamin C and my Quercetin at the same time. It comes in a capsule and it’s not terribly large.

8/5/2026
5.0
verified purchase
Nice vitamin C and Quercetin you need

This is our go-to vitamin C with quercetin, and we've been taking it for some years now. No problem.

8/4/2026
5.0
verified purchase
Great Vitamin C combo with Quercetin & Bioflavonoids

I trust the high-quality of this Vitacost, Synergy, Advan-C, which also includes the beneficial addition of Quercetin & Bioflavonoids to help me supplement my diet with needed Vitamin C, since I don't always get as much as I need just via diet. This combo is a great potency and this 180-capsule size is at a good price.

7/25/2026
5.0
verified purchase

Great supplement for the money and quality comparison to other brands and immune builder.

7/19/2026