---
product_id: 4956052
title: "Glutathione, Cysteine & C, 500 mg of Vitamin C, Powerful antioxidant Supplement to Support Liver Health, Gluten-Free, Non-GMO, 100 Capsules"
brand: "life extension"
price: "$31.48"
currency: USD
in_stock: true
reviews_count: 13
category: "Life Extension"
url: https://www.desertcart.us/products/4956052-glutathione-cysteine-and-c-500-mg-of-vitamin-c-powerful
store_origin: US
region: United States of America
---

# 500 mg Vitamin C - immune & antioxidant synergy 200 mg L-Cysteine - boosts natural glutathione production 50 mg Glutathione - potent antioxidant shield Glutathione, Cysteine & C, 500 mg of Vitamin C, Powerful antioxidant Supplement to Support Liver Health, Gluten-Free, Non-GMO, 100 Capsules

**Brand:** life extension
**Price:** $31.48
**Availability:** ✅ In Stock

## Summary

> 🧪 Unlock your body's natural detox power with every capsule!

## Quick Answers

- **What is this?** Glutathione, Cysteine & C, 500 mg of Vitamin C, Powerful antioxidant Supplement to Support Liver Health, Gluten-Free, Non-GMO, 100 Capsules by life extension
- **How much does it cost?** $31.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/4956052-glutathione-cysteine-and-c-500-mg-of-vitamin-c-powerful)

## 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

- • **Clean & Pure:** Non-GMO, gluten-free, and USA-made with rigorous quality standards.
- • **Science-Backed Dosage:** Precisely formulated with clinically relevant ingredient amounts to support detoxification.
- • **Ultimate Liver Defense:** Combines glutathione, cysteine & vitamin C for powerful oxidative stress protection.
- • **Hair & Skin Strength Boost:** L-Cysteine supports keratin production for visibly stronger hair and nails.
- • **Long-Term Wellness Investment:** 100 capsules provide a 3-month supply to sustain your body's natural antioxidant defenses.

## Overview

Life Extension Glutathione, Cysteine & C delivers a scientifically formulated blend of 50 mg glutathione, 200 mg L-cysteine, and 500 mg vitamin C per capsule to support liver health, combat oxidative stress, and enhance natural antioxidant production. This gluten-free, non-GMO supplement is crafted in the USA and designed for a 3-month regimen to promote long-term cellular defense and vitality.

## Description

Glutathione, Cysteine & C is a powerful antioxidant formula for liver health. It contains 500 mg of vitamin C, 50 mg of glutathione and 200 mg of L-cysteine to promote healthy liver function and support oxidative defense against free radicals. Glutathione, Cysteine & C contains 100 gluten-free capsules, enough for up to a 3-month supply. This formula is made with 100% non-GMO ingredients and is manufactured in the USA.

Review: Quality product - Great insurance for enhancing our immune system.
Review: 90 Days in, one pill a day...and I'm quite pleased - Caveat...I'm not a doctor but rather a structural engineer (lol) so I'm science minded, logical, and rather enjoy reading articles and researching cutting edge science/biochemistry especially as it relates to me. I initially googled Glutathione after reading an article that discussed preliminary trial results of drastically reducing the aging processes in mice (i.e they outlived the control subjects by quite a bit). Once I read up on what Glutathione is and does in the human body, I wondered if it was available in supplemental form. I'm not one that ever takes vitamins and supplements because most of what we need can be achieved through a somewhat healthy diet and I also know that overabundance of certain vitamins/chemicals can sometimes lead to inadvertent side-effects/issues. With that being said, I looked it up on desertcart and through some further wiki-digging about Glutathione and Cysteine, settled on this product combination. I'm 47 so not too old but definitely starting to notice normal aging milestones like randomly sore joints, now having to hold my phone a little further away so I can actually read it, etc. My goal is to slow that aging process down if possible. I read some other reviews that were critical of the 50 mg amount of Glutathione in these pills, but my logic is that we don't want our body thinking it doesn't need to keep naturally producing it and that is where the Cysteine comes into play. Cysteine is a constituent amino acid required for our natural biosynthesis of Glutathione (along with glycine and glutamic acid). Increasing the availability of Cysteine, could logically shore up the Glutathione production. Cysteine also, and more importantly to me who drinks more beer than I probably should, supports liver function by assisting in the metabolization of Acetaldehyde (the nasty toxin responsible for hangovers and liver damage) into acetic acid. The vitamin C, aside from being a go to immune system booster, it is my understanding from what I've read if I'm reading it right, actually helps get the Glutathione and Cysteine into your system and then plays a sort of symbiotic role with the Glutathione, which in turn recycles vitamin C by returning it to a 'reduced' state (antioxidant) if it has become oxidized by doing it's normal antioxidant job. Because this is an oral supplement, its subject to total destruction by our digestive enzymes etc. which is why the directions tell you to take it on an empty stomach. I drink water with it to speed up the process of getting it into the system before my stomach has a chance to destroy it all. As far as benefits I've experienced, I know for certain the Cysteine is getting in because my hair feels stronger and thicker than it ever has (i.e. not breaking and/or falling out as easily). Keratin (what our hair, nails, and outer layers of skin are made of) requires and uses the Cysteine to create 'disulfide bridges' in the hair, nails, and skin which confer additional strength and rigidity. So, if the Cysteine is making it to the system, certainly it's also available to bolster my own Glutathione synthesis. I recommend anyone interested in the whole 'how things work' with regards to this product to read the Wiki articles/explanations of Glutathione (and Glutathione reductase), Cysteine, Keratin, and vitamin C. There's clearly a scientific reason 'Life Extension' chose this combination and quantities (dose amounts) for this product. Kudos to them!

## Features

- What is glutathione? – Glutathione is an antioxidant that helps your liver do its job of detoxifying your body. This formula combines glutathione with several other antioxidants and antioxidant precursors.
- Oxidative stress defense – Your body naturally creates free radicals, compounds that can exert oxidative stress on your liver, impacting its function. In the body, glutathione and vitamin C help fight oxidative stress.
- Liver support – Our formula includes L-cysteine. In the body, L-cysteine helps produce glutathione. Plus, it gives your liver direct support with some of its detoxification duties.
- 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  | B00BRAZIRM |
| Best Sellers Rank | #24,450 in Health & Household ( See Top 100 in Health & Household ) #55 in Antioxidant Combination Nutritional Supplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,534) |
| Date First Available  | September 7, 2016 |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 01541 |
| Manufacturer  | Life Extension |
| Product Dimensions  | 2.35 x 2.35 x 4.4 inches; 4.8 ounces |

## Product Details

- **Brand:** Life Extension
- **Diet Type:** Gluten Free
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 4.8 ounces
- **Item dimensions L x W x H:** 2.35 x 2.35 x 4.4 inches
- **Primary Supplement Type:** L-Cysteine Hydrochloride, Setria® L-Glutathione (reduced), Vitamin C (as ascorbic acid)
- **Special Ingredients:** L-Cysteine Hydrochloride, Setria® L-Glutathione (reduced), Vitamin C (as ascorbic acid)
- **Unit Count:** 100 Count

## Images

![Glutathione, Cysteine & C, 500 mg of Vitamin C, Powerful antioxidant Supplement to Support Liver Health, Gluten-Free, Non-GMO, 100 Capsules - Image 1](https://m.media-amazon.com/images/I/71fqzMOIh8L.jpg)

## Questions & Answers

**Q: What are the benefits of glutathione, cysteine and vitamin C?**
A: Glutathione, cysteine and vitamin C provide antioxidant support, inhibit oxidative stress and encourage healthy liver function.

**Q: Is it OK to take vitamin C while taking glutathione?**
A: Our Glutathione, Cysteine & C is okay to take daily according to the product label: Take one (1) capsule one to three times daily on an empty stomach, or as recommended by a healthcare practitioner.

**Q: How does L-cysteine support liver health?**
A: In the body, L-cysteine supports the detoxification process that takes place in the liver. Your body also uses cysteine to produce glutathione, a powerful antioxidant that protects your cells from oxidation.

**Q: Is L-cysteine the same as glutathione?**
A: No. Glutathione is a naturally occurring antioxidant involved in the detoxification of toxic compounds. L-cysteine is a non-essential amino acid that supports glutathione production in the body.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality product
*by A***R on August 19, 2025*

Great insurance for enhancing our immune system.

### ⭐⭐⭐⭐⭐ 90 Days in, one pill a day...and I'm quite pleased
*by J***Y on July 18, 2022*

Caveat...I'm not a doctor but rather a structural engineer (lol) so I'm science minded, logical, and rather enjoy reading articles and researching cutting edge science/biochemistry especially as it relates to me. I initially googled Glutathione after reading an article that discussed preliminary trial results of drastically reducing the aging processes in mice (i.e they outlived the control subjects by quite a bit). Once I read up on what Glutathione is and does in the human body, I wondered if it was available in supplemental form. I'm not one that ever takes vitamins and supplements because most of what we need can be achieved through a somewhat healthy diet and I also know that overabundance of certain vitamins/chemicals can sometimes lead to inadvertent side-effects/issues. With that being said, I looked it up on Amazon and through some further wiki-digging about Glutathione and Cysteine, settled on this product combination. I'm 47 so not too old but definitely starting to notice normal aging milestones like randomly sore joints, now having to hold my phone a little further away so I can actually read it, etc. My goal is to slow that aging process down if possible. I read some other reviews that were critical of the 50 mg amount of Glutathione in these pills, but my logic is that we don't want our body thinking it doesn't need to keep naturally producing it and that is where the Cysteine comes into play. Cysteine is a constituent amino acid required for our natural biosynthesis of Glutathione (along with glycine and glutamic acid). Increasing the availability of Cysteine, could logically shore up the Glutathione production. Cysteine also, and more importantly to me who drinks more beer than I probably should, supports liver function by assisting in the metabolization of Acetaldehyde (the nasty toxin responsible for hangovers and liver damage) into acetic acid. The vitamin C, aside from being a go to immune system booster, it is my understanding from what I've read if I'm reading it right, actually helps get the Glutathione and Cysteine into your system and then plays a sort of symbiotic role with the Glutathione, which in turn recycles vitamin C by returning it to a 'reduced' state (antioxidant) if it has become oxidized by doing it's normal antioxidant job. Because this is an oral supplement, its subject to total destruction by our digestive enzymes etc. which is why the directions tell you to take it on an empty stomach. I drink water with it to speed up the process of getting it into the system before my stomach has a chance to destroy it all. As far as benefits I've experienced, I know for certain the Cysteine is getting in because my hair feels stronger and thicker than it ever has (i.e. not breaking and/or falling out as easily). Keratin (what our hair, nails, and outer layers of skin are made of) requires and uses the Cysteine to create 'disulfide bridges' in the hair, nails, and skin which confer additional strength and rigidity. So, if the Cysteine is making it to the system, certainly it's also available to bolster my own Glutathione synthesis. I recommend anyone interested in the whole 'how things work' with regards to this product to read the Wiki articles/explanations of Glutathione (and Glutathione reductase), Cysteine, Keratin, and vitamin C. There's clearly a scientific reason 'Life Extension' chose this combination and quantities (dose amounts) for this product. Kudos to them!

### ⭐⭐⭐⭐⭐ 신체 활력에 도움되요. 좋아요.
*by K***Y on January 15, 2026*

I was feeling lethargic and unmotivated, but this really helped me recover. It also has a long shelf life.

## Frequently Bought Together

- Life Extension Glutathione, Cysteine & C, 500 mg of Vitamin C, Powerful antioxidant Supplement to Support Liver Health, Gluten-Free, Non-GMO, 100 Capsules
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-27*