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
Vitacost
Synergy®, Advan-C® Including Quercetin & Bioflavonoids, 180 Capsules
4.9
· 29 reviews
2,440 ₽
1,000 mg Per Serving Everyday Essentials Potency · Purity · Pride Gentle On The Stomach Antioxidant Support Vitamin Supplement When you need a vitamin C complex that’s gentler on the digestive system, turn to this superior formula that’s more highly absorbable than the common C. What is Advan-C with Quercetin and Citrus Bioflavonoids? Advan-C is an acid-neutralized form of vitamin C, so it’s non-irritating to your digestive system. This gentler formula also provides bioflavonoids, which are plant compounds known for their antioxidant powers. You would otherwise find bioflavonoids in pulp and rinds of citrus fruits, plus vegetables and teas. A type of bioflavonoid with antioxidant properties, Quercetin is also found in plant-based foods – particularly apples, onions and teas. What are the key benefits of Synergy Advan-C with Quercetin and 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.
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1,000 mg Per Serving Everyday Essentials Potency · Purity · Pride Gentle On The Stomach Antioxidant Support Vitamin Supplement When you need a vitamin C complex that’s gentler on the digestive system, turn to this superior formula that’s more highly absorbable than the common C. What is Advan-C with Quercetin and Citrus Bioflavonoids? Advan-C is an acid-neutralized form of vitamin C, so it’s non-irritating to your digestive system. This gentler formula also provides bioflavonoids, which are plant compounds known for their antioxidant powers. You would otherwise find bioflavonoids in pulp and rinds of citrus fruits, plus vegetables and teas. A type of bioflavonoid with antioxidant properties, Quercetin is also found in plant-based foods – particularly apples, onions and teas. What are the key benefits of Synergy Advan-C with Quercetin and 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.
- SKU
- 3-158652
- Brand
- Vitacost
- Category
- health / vitamins / basic-vitamins / vitamin-c-ascorbic-acid
- Variants
- 1
Customer reviews
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
