L-Glutathione Plus is a dual-action antioxidant supplement that helps cellular protection and detoxification by delivering glutathione and boosting its production with NAC. Douglas Laboratories has decades of clinician-trusted, high quality supplements, created under strict manufacturing standards. This dual action supports both direct antioxidant activity and the body's own glutathione production for a practical daily boost.

Available Sizes & Variants:

60 capsules - Easy daily dose in a handy capsule form

Benefits & Features:

• Direct antioxidant support shields cells against daily stress.
• NAC supplies cysteine to boost glutathione synthesis, strengthening the body's natural defence system.
• Dual action design offers dual pathways of protection, directly supplying antioxidants while supporting the body's own production, which can help you maintain daily resilience every single day.
• Non GMO and allergen free ingredients ease daily supplementation.
• Premium manufacturing standards reassure quality you can trust, especially when paired with collagen supplements for skin in a holistic routine.

Douglas Laboratories brings decades of clinician-focused expertise to L-Glutathione Plus, a formulation built for daily resilience. The combo of reduced glutathione and NAC supports two antioxidant pathways, which many customers find reassuring for skin health routines. Each capsule contains 50 mg glutathione and 440 mg NAC, in a non-GMO, allergen-free format. It fits alongside collagen supplements for skin in modern wellness regimes, and some discussions call this approach lipoceutical glutathione, a term you may see online.

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the 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 30 days in the same original and unopened packaging. Subject to T&C's.

The supplement is commonly used to improve physical performance and enhance muscle growth. It is also utilized to boost energy levels and support overall health and well-being. Additionally, it may be taken to aid in weight management and promote a healthy immune system. Many people also use the supplement to help with recovery after intense exercise or to combat fatigue. Take 2-3 capsules\, 2-3 times a day after meals

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

1. Powerful antioxidant activity: L-Glutathione is known as the body's "master antioxidant" due to its ability to neutralize harmful free radicals and protect cells from oxidative damage. This can help boost the immune system and reduce the risk of chronic diseases.
2. Promotes skin health: L-Glutathione has been shown to have skin-lightening effects, making it a popular ingredient in many beauty products. It also helps to reduce the appearance of wrinkles and age spots, promoting a more youthful and radiant complexion.

The Active Ingredient Is: Glutathione (Reduced L-Glutathione)

Glutathione is a naturally occurring tripeptide that acts as a major antioxidant and supports cellular defence against oxidative stress. This product contains the reduced form of glutathione to offer direct antioxidant activity.

This formula also features N-acetyl-L-cysteine NAC, which functions as a precursor for glutathione synthesis in cells, helping to support the body's own production of glutathione and overall antioxidant capacity.

What Does Glutathione Do?

Glutathione helps neutralise reactive oxygen species and aids detoxification processes, contributing to normal cellular function. NHS and EFSA recognise its role in antioxidant protection within healthy physiology.

The combination of direct glutathione and NAC provides two complementary pathways for cellular defence, in line with guidance on antioxidant support in a dietary context.

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

Douglas Laboratories is our chosen partner for L-Glutathione Plus because their quality commitment is clear in their long-standing, clinician-focused approach to high-specification nutritional supplements. This heritage gives Welzo confidence in a range designed for clinical and professional settings, reinforcing the trust clinicians have in Douglas Laboratories.

Our Welzo healthcare team has evaluated Douglas Laboratories for compliance with our rigorous testing protocols, ensuring alignment with safety and quality standards. The brand’s reputation as a clinician-approved provider underscores its meticulous attention to formulation integrity and manufacturing excellence.

This brand is particularly well matched for a dual-action antioxidant supplement like L-Glutathione Plus, where a direct antioxidant component paired with a synthesis precursor sits at the heart of the concept. Douglas Laboratories’ focus on high-quality, practitioner-trusted supplements backs Welzo’s dedication to evidence-based curation. For our internal vetting, the evaluation centred on brand credibility, product fit, and ability to uphold stringent quality standards, a process carried out by Welzo's healthcare professionals.