---
product_id: 105911666
title: "Fast-C® and Bio-Quercetin®, Fast delivery and Absorption, Vitamin C, Fenugreek, Immune Support, Magnesium, Gluten-Free, Non-GMO, Vegetarian, 60 Tablets"
brand: "life extension"
price: "€ 34.35"
currency: EUR
in_stock: true
reviews_count: 8
category: "Life Extension"
url: https://www.desertcart.sk/products/105911666-fast-c-and-bio-quercetin-fast-delivery-and-absorption-vitamin
store_origin: SK
region: Slovakia
---

# 62x bioavailability boost Gluten-free, Non-GMO, Vegetarian Immune & heart support Fast-C® and Bio-Quercetin®, Fast delivery and Absorption, Vitamin C, Fenugreek, Immune Support, Magnesium, Gluten-Free, Non-GMO, Vegetarian, 60 Tablets

**Brand:** life extension
**Price:** € 34.35
**Availability:** ✅ In Stock

## Summary

> 🛡️ Elevate your immunity and heart health with science-backed power!

## Quick Answers

- **What is this?** Fast-C® and Bio-Quercetin®, Fast delivery and Absorption, Vitamin C, Fenugreek, Immune Support, Magnesium, Gluten-Free, Non-GMO, Vegetarian, 60 Tablets by life extension
- **How much does it cost?** € 34.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/105911666-fast-c-and-bio-quercetin-fast-delivery-and-absorption-vitamin)

## Best For

- life extension enthusiasts

## Why This Product

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

## Key Features

- • **Gentle on Your Stomach:** Calcium-magnesium complex neutralizes acid, ensuring powerful vitamin C benefits without discomfort.
- • **Turbocharged Absorption:** Bio-Quercetin® with black pepper extract delivers up to 62x better bioavailability for maximum impact.
- • **Clean & Conscious Formula:** Non-GMO, gluten-free, vegetarian, and USA-made for purity you can trust.
- • **Dual Immune & Heart Defense:** Vitamin C and quercetin team up to fortify your immune system and cardiovascular health.
- • **Scientifically Backed Wellness:** Formulated with clinically studied ingredients to help you live your healthiest, most vibrant life.

## Overview

Life Extension Fast-C® and Bio-Quercetin® combines highly absorbable vitamin C and quercetin enhanced with black pepper extract for up to 62x better bioavailability. This gluten-free, non-GMO, vegetarian formula supports immune and cardiovascular health while being gentle on the stomach thanks to a unique calcium-magnesium complex. Manufactured in the USA, it offers a clean, scientifically formulated supplement designed for proactive wellness.

## Description

Fast-C® and Bio-Quercetin® is a novel formula for immune, cardiovascular, and antioxidant support. Our formula contains absorbable vitamin C with our Bio-Quercetin®, which combines quercetin fenugreek seed fibers to increase bioavailability up to 62x compared to standard quercetin. Fast-C® and Bio-Quercetin® contains 60 vegetarian tablets, enough for a 1–2-month supply. Non-GMO, gluten-free and manufactured in the USA.

Review: Health - This helps keep me healthy!
Review: Excellent Product. After much research, this rose to the top. - Excellent Product. After much research, this rose to the top.

## Features

- Supports immune system health – Vitamin C supports immune health, heart health, iron uptake, collagen formation and more. Quercetin also supports both immune and cardiovascular health.
- Absorption and bioavailability – We use black pepper extract to enhance vitamin C bioavailability. Plus, our Bio-Quercetin is up to 62x more bioavailable than standard quercetin formulations.
- Protecting sensitive stomachs – Contains a novel calcium-magnesium mineral complex to help neutralize acid and promote vitamin C absorption—without stomach discomfort.
- Ingredients matter – We use the finest raw ingredients with the quality and purity you deserve. The majority of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available for every one.
- Live your healthiest life – We believe the answers to a healthier life are in reach, and that scientific research is the key to getting there. That’s why so many of our formulas feature specific ingredients and amounts based on scientific studies.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B07N1B1L1D |
| Best Sellers Rank | #56,514 in Health & Household ( See Top 100 in Health & Household ) #49 in Quercetin Antioxidant Supplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (271) |
| Date First Available  | December 27, 2018 |
| Item model number  | 02229 |
| Manufacturer  | Life Extension |
| Product Dimensions  | 4.19 x 0.75 x 4.25 inches; 3.2 ounces |

## Product Details

- **Brand:** Life Extension
- **Diet Type:** Gluten Free, Vegetarian
- **Flavor:** Unflavored
- **Item Form:** Tablet
- **Primary Supplement Type:** Vitamin C

## Images

![Fast-C® and Bio-Quercetin®, Fast delivery and Absorption, Vitamin C, Fenugreek, Immune Support, Magnesium, Gluten-Free, Non-GMO, Vegetarian, 60 Tablets - Image 1](https://m.media-amazon.com/images/I/71Gz68YxlJL.jpg)

## Questions & Answers

**Q: Why take a vitamin C supplement?**
A: Vitamin C is a potent antioxidant that helps promote healthy circulation, encouraging everything from healthy arterial blood flow to improved blood vessel dilation. It even helps encourage a healthy immune response.

**Q: What is Bio-Quercetin?**
A: Bio-Quercetin uses a quercetin combined with fibers from fenugreek seeds to increase bioavailability up to 62x to help maintain healthy blood concentrations.

**Q: What are the main benefits of Life Extension’s Fast-C and Bio-Quercetin?**
A: Our Fast C and Bio-Quercetin formula is up to 62x more absorbable than traditional quercetin and promotes the healthy absorption of vitamin C with a black pepper extract. And it’s neutralized with calcium and magnesium to protect sensitive stomachs.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Health
*by L***R on October 27, 2025*

This helps keep me healthy!

### ⭐⭐⭐⭐⭐ Excellent Product. After much research, this rose to the top.
*by S***L on July 11, 2025*

Excellent Product. After much research, this rose to the top.

### ⭐⭐⭐⭐⭐ Does the job
*by R***. on July 27, 2024*

This product has has been apart of my diet for years and I stand by the company. This isn't a do all pill or magic pill BUT with simple eating, sleeping and physical activity changes you will see improvement amongst yourself. definitely would recommend.

## Frequently Bought Together

- Life Extension Fast-C® and Bio-Quercetin®, Fast delivery and Absorption, Vitamin C, Fenugreek, Immune Support, Magnesium, Gluten-Free, Non-GMO, Vegetarian, 60 Tablets
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- Life Extension Zinc Caps, zinc 50 mg, zinc citrate, Support the body's immune defenses, ultra-absorbable, vegetarian, non-GMO, gluten-free, 90 vegetarian capsules, 90 Count (Pack of 1)

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**Shop now:** [https://www.desertcart.sk/products/105911666-fast-c-and-bio-quercetin-fast-delivery-and-absorption-vitamin](https://www.desertcart.sk/products/105911666-fast-c-and-bio-quercetin-fast-delivery-and-absorption-vitamin)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-25*