---
product_id: 17692583
title: "Bioactive Quercetin EMIQ - Immunity Support Supplement with Vitamin C - Quercetin for Upper Respiratory & Heart Health - 60 Vegetarian Capsules (60 Servings)"
brand: "natural factors"
price: "33886CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Natural Factors"
url: https://www.desertcart.sn/products/17692583-bioactive-quercetin-emiq-immunity-support-supplement-with-vitamin-c-quercetin
store_origin: SN
region: Senegal
---

# Enhanced bioavailability for max absorption 100% vegetarian & allergen-free formula Powerful immune & sinus defense Bioactive Quercetin EMIQ - Immunity Support Supplement with Vitamin C - Quercetin for Upper Respiratory & Heart Health - 60 Vegetarian Capsules (60 Servings)

**Brand:** natural factors
**Price:** 33886CFA
**Availability:** ✅ In Stock

## Summary

> 🛡️ Elevate your immunity game with science-backed bioactive power!

## Quick Answers

- **What is this?** Bioactive Quercetin EMIQ - Immunity Support Supplement with Vitamin C - Quercetin for Upper Respiratory & Heart Health - 60 Vegetarian Capsules (60 Servings) by natural factors
- **How much does it cost?** 33886CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/17692583-bioactive-quercetin-emiq-immunity-support-supplement-with-vitamin-c-quercetin)

## Best For

- natural factors enthusiasts

## Why This Product

- Trusted natural factors brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Daily Wellness Ritual:** Easy-to-swallow capsules designed for consistent immune support, anytime.
- • **Next-Level Absorption:** Bioactive Quercetin EMIQ boosts your body's uptake for faster, stronger effects.
- • **Clean & Conscious Formula:** Free from common allergens and GMOs, perfect for mindful wellness seekers.
- • **Trusted Quality Assurance:** Family-owned B-Corp with carbon-neutral, 3rd party tested manufacturing.
- • **Immune & Respiratory Shield:** Supports upper respiratory health and fortifies your natural defenses daily.

## Overview

Natural Factors Bioactive Quercetin EMIQ is a premium vegetarian supplement featuring enhanced bioavailability quercetin combined with Vitamin C to support immune, sinus, and heart health. Free from major allergens and GMOs, it is crafted by a family-owned, carbon-neutral B-Corp with rigorous quality control, delivering 60 easy-to-swallow capsules for daily wellness.

## Description

Buy Natural Factors Bioactive Quercetin EMIQ - Immunity Support Supplement with Vitamin C - Quercetin for Upper Respiratory & Heart Health - 60 Vegetarian Capsules (60 Servings) on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Works - Seems to be working.
Review: Easy to swallow. - Great product. Would purchase again.

## Features

- Supplement with Increased Bioavailability: Quercetin bioflavonoid in our Bioactive Quercetin EMIQ is designed for better absorption
- Immune & Sinus Support: This health supplement aids in maintaining robust immune and sinus health for overall health support
- Daily Quercetin Supplement: To support immune health, take 1-2 times per day or as directed by a health professional
- Dietary Immunity Support Supplement: This dietary supplement is free from dairy, sugar, wheat, gluten, yeast, soy, corn, egg, fish, shellfish, salt, tree nuts, and GMOs
- About Natural Factors: Natural Factors is a family-owned B-Corp, Carbon Neutral, and 3rd Party with direct ownership of all manufacturing stages to ensure the highest quality supplements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B00KNOW1AU |
| Best Sellers Rank | #37,785 in Health & Household ( See Top 100 in Health & Household ) #50 in Flavonoid Antioxidant Supplements |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,225) |
| Date First Available  | May 30, 2014 |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 1381 |
| Manufacturer  | NATURAL FACTORS |
| Product Dimensions  | 2.36 x 2.36 x 3.94 inches; 1.92 ounces |

## Product Details

- **Brand:** Natural Factors
- **Diet Type:** Vegan, Vegetarian
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Primary Supplement Type:** Quercetin

## Images

![Bioactive Quercetin EMIQ - Immunity Support Supplement with Vitamin C - Quercetin for Upper Respiratory & Heart Health - 60 Vegetarian Capsules (60 Servings) - Image 1](https://m.media-amazon.com/images/I/71ZEU-Qrf0L.jpg)

## Questions & Answers

**Q: What is the bioavailability percentage of this emiq quercetin?**
A: There is 50 mg of highly absorbable quercetin out of 167 mg of 167 mg of EMIQ. This form (enzymatically modified isoquercetin) is meant to be more absorbable than other forms.
I have taken this for several  years and haven't  had allergies or sinus issues at all.  My doctor recommended it.

**Q: Question for the seller:  which country do you source your raw material for quercetin?  not where it is manufatured  please specify country**
A: The bottle says product of Canada but does not say where raw materials come from. Natural Factors Canada.

**Q: How much quercetin per capsule ... 50mg is listed, but 50mg of what? ingredients list 167mg emiq ... but that's more than quercetin, right?**
A: Thank you for contacting us. Please see the below. 

Each capsule contains:	 
EMIQ (enzymatically modified isoquercitrin)	167 mg
(providing 50 mg of highly absorbable quercetin)	 
Vitamin C (calcium ascorbate)	50 mg

Hope this information helps. Thank you and have a good rest of the day.

**Q: Is this derived from corn, citrus, or legumes?**
A: The video shows the ingredients. Derived from Non-GMO plants: Kale, alfalfa, artichoke, berries, etc. Stop the video when it comes to the ingredient label. It would have been more helpful if the Manufacturer or Seller showed the label, but I'm no marketing expert!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works
*by M***N on December 14, 2025*

Seems to be working.

### ⭐⭐⭐⭐⭐ Easy to swallow.
*by E***L on January 29, 2026*

Great product. Would purchase again.

### ⭐⭐⭐⭐⭐ Good for histamine intolerance
*by T***I on October 13, 2025*

It is working very well. Its helping with my histamine intolerance.

## Frequently Bought Together

- Natural Factors Bioactive Quercetin EMIQ 50 mg with Vitamin C, Supports Sinus, Heart and Immune Health, 60 Capsules
- NutriFlair Premium Berberine HCL 1200mg, 120 Capsules - Plus Pure True Ceylon Cinnamon, Berberine HCI Root Supplements Pills - Immune System, Healthy Weight Management

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**Shop now:** [https://www.desertcart.sn/products/17692583-bioactive-quercetin-emiq-immunity-support-supplement-with-vitamin-c-quercetin](https://www.desertcart.sn/products/17692583-bioactive-quercetin-emiq-immunity-support-supplement-with-vitamin-c-quercetin)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-04*