Hugo Dover

"Very quick delivery. Used 3 times, each order arrived the next day before 12:00. Product quality is exactly as described."

Hugo Dover Verified
Elina Goulliard

"Reliable & original products, with fast next day delivery. Have been using Welzo for over a year now."

Elina Goulliard Verified
Elizabeth Moore

"Welzo is great, lots of support from customer service who are easy to get a hold of and quick delivery."

Elizabeth Moore Verified

Life Extension Glutathione, Cysteine & C - 100 caps

3 Reviews
£18.72
Save 30% £26.77

Life Extension Glutathione, Cysteine & C is a targeted antioxidant supplement that supports cellular defence and liver health for daily resilience.

Purchase options

Delivery tomorrow, 25 bought this week

Quantity

4+Save 5% 4Save 5%
Verified Authenticity
Money-Back Guarantee
Easy Returns

100% Money back guarantee, no questions asked

Secure Transaction

VISA Pay AMEX Pay
Excellent Trustindex

Fast UK delivery from £3.99

Order within for next-day delivery

As seen in

Life Extension Glutathione, Cysteine & C is a targeted antioxidant supplement that supports cellular defence and liver health for daily resilience. Primary actives include vitamin C, Setria L glutathione and L cysteine hydrochloride, forming a threefold antioxidant network for cell protection. Life Extension's non GMO LE Certified status, gluten-free formulation and vegetable capsules reflect a long-standing commitment to quality you can rely on.

Available Sizes & Variants:

100 capsules – convenient daily dose for ongoing antioxidant support.

Benefits & Features:

  • Supports cellular antioxidant defence and helps shield cells from everyday oxidative stress daily.
  • Combines vitamin C with Setria L glutathione and L cysteine hydrochloride to form a powerful, self regenerating antioxidant network that supports liver health and cellular protection.
  • Gentle on the tummy.
  • Vegetable capsules make daily use easy and sourcing clean for everyday convenience.
  • Dosing remains flexible to fit your needs and clinician recommendations today.

Life Extension has built a reputation for quality, sourcing Setria glutathione from Kyowa Hakko and delivering non GMO gluten free supplements in vegetable capsules. L cysteine acts as a direct precursor for glutathione, while vitamin C helps regenerate the reduced form, strengthening a three way antioxidant network that protects cells. If you are taking a vitamin d supplement, this product can fit neatly into your daily routine, and n acetylcysteine users may appreciate the cysteine boost.

Vitamin C (as Ascorbic Acid), Setria L-Glutathione (Reduced), L-Cysteine Hydrochloride, Vitamin C (as Ascorbic Acid), Setria L-Glutathione (Reduced), L-Cysteine Hydrochloride

GTIN
737870154112
Manufacturer
Life Extension
Best buy
6 to 24 months+

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

Take one (1) capsule one to three times daily on an empty stomach, or as recommended by a healthcare practitioner. Store in a cool, dry place, out of reach of children. Do not exceed the recommended dose. Do not purchase if outer seal is broken or damaged. Consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

Please consult the product packaging for accurate instructions on how to use the product.

  Amount
Per Serving
%RI*
Vitamin C (as Ascorbic Acid) 500 mg 833%
Setria L-Glutathione (Reduced) 50 mg
L-Cysteine Hydrochloride 200 mg

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Core Ingredient Is: Vitamin C (Ascorbic Acid)

Vitamin C, which you might know as ascorbic acid, is a water soluble vitamin essential for building connective tissue and keeping immunity in check.

This form is ascorbic acid and is there to give a stable, food grade source of vitamin C for easy daily use.

What Does Vitamin C Do?

Vitamin C helps to support antioxidant networks by helping the regeneration of other antioxidants and contributes to collagen formation, which is important for normal tissue function. It also helps the body’s defence against oxidative stress as part of a balanced antioxidant system.

EFSA notes the antioxidant role of vitamin C and its involvement in supporting normal physiological functions related to connective tissue and immune support.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Welzo's medical crew picked Life Extension as our collaborator for this supplement since Life Extension shows production excellence and a clear pledge to quality via widely recognised ingredients and criteria. The product uses Setria® L-Glutathione from KYOWA HAKKO BIO Co., Ltd., a trusted brand-name ingredient that signals careful sourcing and respected refinement, which our clinicians value highly. Life Extension also offers Non-GMO LE Certified and gluten-free status, delivered in vegetarian capsules with minimal excipients, showing their ongoing dedication to purity and easy dosing. This blend of branded, quality-assured ingredients and transparent composition underpins our confidence in the brand’s stability and reliability. This brand was assessed by Welzo's healthcare professionals for compliance with our quality certification process, making sure it aligns with our strict standards for safety and consistency.

Part of the Welzo System™

Test, supplement, enhance, and move, all in one place.

25 bought this week
30-Day Money Back Guarantee
GMP Certified Facilities
Third-Party Tested
Vegan & Non-GMO
Rated Excellent
by 28,000+ Positive ReviewsTrustindex verified
Rated 4.8/5 by 27,000+ Customers
UKAS Accredited Labs
Free Next-Day Delivery Over £50
Science-Backed Formulations

Frequently Asked Questions

Everything you need to know about this product.

Third Party Tested
Trusted by 200,000+ Customers
Pharmaceutical-Grade Quality
UK-Based Customer Support