Olympian Labs Quercetin Plus Vitamin C, 1 g, 60 Vegetarian Capsules supplement bottle
Olympian Labs

Quercetin Plus Vitamin C, 1 g, 60 Vegetarian Capsules

What We Researched
2 active ingredients analyzed · 3 inactive ingredients decoded · 2 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
87
Product Score Good
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C 200 mg 333%
Quercetin 1 g *
Bioavailability Fair

Absorption Rating

  • Vitamin C Fair
  • Quercetin Fair
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose (Plant Fiber)
  • Rice Flour
  • Magnesium Stearate and Silica
Efficacy Excellent

Dosage Analysis

  • Vitamin C 200 mg Effective
  • Quercetin 1 g Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C 200 mg 333%
Quercetin 1 g *

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose (Plant Fiber) Safe

It is used as a filler, binder, and disintegrant.

Rice Flour Safe

Natural bulking agent to fill capsule space. Hypoallergenic.

Magnesium Stearate and Silica Generally_safe

It is used to improve powder flow and prevent sticking during manufacturing.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$40$39$38$37$36 Mar 12 $37.79
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
Olympian Labs

Founded 1992 · Phoenix, Arizona, United States · 85 products · olympianlabsshop.com/

Certifications

2 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source

Violation History

2 incidents
Prop 65 Lead2018-09-05Source
Lawsuit Allegations that the products 'Medi-Phen' and 'Herp-Eeze' were not safe or effective for their advertised purposes of weight loss and relief of Herpes simplex viruses, respectively.2002Source
Related Supplements
Frequently Asked Questions
Is Olympian Labs Quercetin Plus Vitamin C, 1 g a good supplement?

Olympian Labs Quercetin Plus Vitamin C, 1 g, 60 Vegetarian Capsules received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 2 active ingredients with 30 servings per container. Of the 3 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Olympian Labs, holds a brand trust score of 66/100 with 2 verified certifications including Consumerlab, Fda Gmp Inspections.

What are the ingredients in Olympian Labs Quercetin Plus Vitamin C, 1 g?

Olympian Labs Quercetin Plus Vitamin C, 1 g contains 2 active ingredients: Vitamin C (200 mg), Quercetin (1 g). Notable high-dose ingredients include Vitamin C at 333% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Olympian Labs Quercetin Plus Vitamin C, 1 g safe to take?

Olympian Labs Quercetin Plus Vitamin C, 1 g, 60 Vegetarian 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 Olympian Labs a trustworthy supplement brand?

Olympian Labs receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1992 and headquartered in Phoenix, Arizona, United States, the company offers 85 products in their lineup. They hold 2 verified certifications including Consumerlab, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Olympian Labs has 2 historical regulatory incidents on record, which are factored into the trust score.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

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.