Vitacost-Synergy Synergy Advan-C® including Quercetin & Bioflavonoids, 1000 mg, 180 Capsules supplement bottle
Vitacost-Synergy

Synergy Advan-C® including Quercetin & Bioflavonoids, 1000 mg, 180 Capsules

What We Researched
4 active ingredients analyzed · 4 inactive ingredients decoded · 1 brand certification checked · 1 retailer compared · Last updated: Mar 2026
74
Product Score Fair
62
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C(as calcium ascorbate complex) Advan-C® 1000 mg 1,111%
Calcium(as calcium ascorbate complex, calcium threonate, dicalcium phosphate) 115 mg 9%
Citrus Bioflavonoid Complex 200 mg *
Quercetin(as quercetin dihydrate) 200 mg *
Bioavailability Good

Absorption Rating

  • Vitamin C(as calcium ascorbate complex) Advan-C® Good
  • Calcium(as calcium ascorbate complex, calcium threonate, dicalcium phosphate) Fair
  • Quercetin(as quercetin dihydrate) Fair
Other Ingredients Excellent

Fillers & Additives

  • Gelatin
  • Vegetable Stearic Acid
  • Microcrystalline Cellulose
  • Silicon dioxide and Vegetable magnesium stearate
Efficacy Poor

Dosage Analysis

  • Vitamin C(as calcium ascorbate complex) Advan-C® 1000 mg Effective
  • Calcium(as calcium ascorbate complex, calcium threonate, dicalcium phosphate) 115 mg Under-dosed
  • Quercetin(as quercetin dihydrate) 200 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C(as calcium ascorbate complex) Advan-C® 1000 mg 1,111%
Calcium(as calcium ascorbate complex, calcium threonate, dicalcium phosphate) 115 mg 9%
Citrus Bioflavonoid Complex 200 mg *
Quercetin(as quercetin dihydrate) 200 mg *

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Vegetable Stearic Acid Generally_safe

It is used to prevent ingredients from sticking to manufacturing equipment.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Silicon dioxide and Vegetable magnesium stearate Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$23$22$21$20$19 Mar 12 $20.89
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Vitacost-Synergy

Founded 1994 · Boca Raton, Florida, United States · 53 products · vitacost.com/

Certifications

1 certification
Consumerlab Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed

Violation History

3 incidents
Prop 65 Lead2020-10-26Source
Lawsuit Mislabeled magnesium content in supplements.2016Source
Recall SYNERGY PLUS (For Children Over 4 Years) CHEWABLES Vitabots Multiple Vitamins & Minerals with Digestive Enzymes and Oat Bran1993-11-08Source
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Frequently Asked Questions
Is Vitacost-Synergy Synergy Advan-C® including Quercetin & Bioflavonoids, 1000 mg a good supplement?

Vitacost-Synergy Synergy Advan-C® including Quercetin & Bioflavonoids, 1000 mg, 180 Capsules received a product quality score of 74/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 4 active ingredients with 90 servings per container. Of the 4 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Vitacost-Synergy, holds a brand trust score of 62/100 with 1 verified certifications including Consumerlab.

What are the ingredients in Vitacost-Synergy Synergy Advan-C® including Quercetin & Bioflavonoids, 1000 mg?

Vitacost-Synergy Synergy Advan-C® including Quercetin & Bioflavonoids, 1000 mg contains 4 active ingredients: Vitamin C(as calcium ascorbate complex) Advan-C® (1000 mg), Calcium(as calcium ascorbate complex, calcium threonate, dicalcium phosphate) (115 mg), Citrus Bioflavonoid Complex (200 mg), Quercetin(as quercetin dihydrate) (200 mg). Notable high-dose ingredients include Vitamin C at 1,111% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Vitacost-Synergy Synergy Advan-C® including Quercetin & Bioflavonoids, 1000 mg safe to take?

Vitacost-Synergy Synergy Advan-C® including Quercetin & Bioflavonoids, 1000 mg, 180 Capsules has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Vitacost-Synergy a trustworthy supplement brand?

Vitacost-Synergy receives a brand trust score of 62/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1994 and headquartered in Boca Raton, Florida, United States, the company offers 53 products in their lineup. They hold 1 verified certifications including Consumerlab. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Vitacost-Synergy has 3 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.