---
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: "987128₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Life Extension"
url: https://www.desertcart.vn/products/105911666-fast-c-and-bio-quercetin-fast-delivery-and-absorption-vitamin
store_origin: VN
region: Vietnam
---

# 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:** 987128₫
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your immunity with science-backed power and gut-friendly absorption!

## 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?** 987128₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/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 Gut:** Innovative calcium-magnesium complex neutralizes acid, ensuring maximum vitamin C absorption without stomach discomfort.
- • **Turbocharged Absorption:** Bio-Quercetin® is up to 62x more absorbable than standard quercetin, powered by black pepper extract for lightning-fast delivery.
- • **Clean & Conscious Formula:** Non-GMO, gluten-free, vegetarian, and crafted in the USA with premium raw ingredients you can trust.
- • **Comprehensive Immune Defense:** Vitamin C and quercetin team up to support your immune system, cardiovascular health, and collagen formation for a resilient you.
- • **Scientifically Backed Wellness:** Formulated based on cutting-edge research to help you live your healthiest, most vibrant life.

## Overview

Life Extension Fast-C® and Bio-Quercetin® delivers a potent blend of vitamin C and highly bioavailable quercetin enhanced with black pepper extract for up to 62x better absorption. This gluten-free, non-GMO, vegetarian formula supports immune, cardiovascular, and antioxidant health while protecting sensitive stomachs with a unique calcium-magnesium complex. Manufactured in the USA, it offers 60 tablets designed for fast, effective immune support backed by scientific research.

## 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 |
| ASIN  | B07N1B1L1D |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #95,422 in Health & Household ( See Top 100 in Health & Household ) #74 in Quercetin Antioxidant Supplements |
| Brand Name | Life Extension |
| Color | Off White to Yellow |
| Container Type | Bottle |
| Customer Reviews | 4.6 4.6 out of 5 stars (276) |
| Date First Available  | December 27, 2018 |
| Diet Type | Gluten Free, Vegetarian |
| Dosage Form | Tablet |
| Flavor | Unflavored |
| Global Trade Identification Number | 00737870222965 |
| Item Dimensions | 4.19 x 0.75 x 4.25 inches |
| Item Form | Tablet |
| Item Nype Name | Fast-C and Bio-Quercetin Phytosome |
| Item Weight | 0.2 Pounds |
| Item model number  | 02229 |
| Manufacturer | Life Extension |
| Manufacturer  | Life Extension |
| Material Type Free | Gluten Free, Non-GMO |
| Model Name | Fast-C® and Bio-Quercetin® |
| Number of Items | 1 |
| Primary Supplement Type | Vitamin C |
| Product Benefits | Encourages absorption & bioavailability with black pepper extract, Helps inhibit oxidative stress & inflammatory factors to support immune health, Protects sensitive stomachs with calcium-magnesium blend, Supports immune system health, Uses a bio-quercetin that is up to 62 times more absorbable than traditional quercetin |
| Product Dimensions  | 4.19 x 0.75 x 4.25 inches; 3.2 ounces |
| Special Ingredients | Bio-Quercetin®, Bioperine® piperine [from black pepper extract (fruit)], Calcium (as calcium carbonate), Magnesium (as magnesium hydroxide), Vitamin C (as ascorbic acid) |
| Specific Uses For Product | Anti-Aging & Longevity, General Health & Wellness, Immune Support |
| UPC | 737870222965 |
| Unit Count | 60.00 Count |

## 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)

## Available Options

This product comes in different **Size** options.

## 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.

### ⭐⭐⭐⭐⭐ Immune System Support
*by B***B on February 9, 2026*

I’ve been using this supplement for years. I used to get sick several times a year now it’s very rare.

## Frequently Bought Together

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-05-17*