Optimal Glutathione Plus is a glutathione supplement designed to boost antioxidant protection and cellular resilience, helping you cope with daily oxidative stress and feel steadier throughout the day. Active ingredients include S-acetyl-L-glutathione, riboflavin phosphate sodium, selenium, molybdenum glycinate and PQQ, all chosen to support antioxidant activity and cellular resilience. Manufactured in the USA to cGMP standards, Seeking Health gives professional grade purity and transparent ingredient sourcing.

Available Sizes & Variants:

60 capsules glutathione supplement - Daily antioxidant support you can rely on.

Benefits & Features:

• Supports steady antioxidant defence as glutathione supplements to help protect cells daily.
• Liposomal glutathione alternatives are common, this enhances absorption.
• Riboflavin phosphate sodium, selenium and molybdenum support glutathione recycling for ongoing protection.
• PQQ adds an extra layer of cellular support alongside antioxidant action.
• Additionally, for beauty supplements fans, the formulation uses acid resistant vegetarian capsules to keep ingredients stable in your gut, helping ensure consistent absorption and reliable antioxidant support throughout the day.

Seeking Health's glutathione supplements line draws on decades of formulating high purity options. The formula uses SelenoExcell High Selenium Yeast for reliable selenium delivery and co-factors that support glutathione activity. Manufactured in the USA to current Good Manufacturing Practices, it employs acid resistant vegetarian capsules for stable delivery and allergen friendly ingredients. In the liposomal glutathione space, this acetylated form offers solid absorption, making it a trusted choice for those seeking authentic beauty supplements without fuss.

(other) Vegetarian capsule (hypromellose and water), ascorbyl palmitate, and silicon dioxide.

• GTIN: 810007521459
• Manufacturer: Seeking Health
• Categories: GlutathioneNew ArrivalsPopular Supplement BrandsSeeking Health
• Best buy: 6 - 24 months+

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.

Take one capsule of Optimal Glutathione Plus daily, with or without food, or follow your healthcare provider's instructions.

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

The Active Ingredient Is: S-Acetyl-L-Glutathione

S-Acetyl-L-Glutathione is a stabilised, acetylated form of glutathione that enhances chemical stability and absorption compared with standard glutathione.

In this formula, the active ingredient is paired with riboflavin, selenium, molybdenum and PQQ to support glutathione cycling and cellular protection, with acid-resistant vegetarian capsules provided for suitability.

What Does S-Acetyl-L-Glutathione Do?

Scientific research suggests that S-acetyl-L-glutathione effectively increases intracellular glutathione concentrations and supports antioxidant protection against oxidative stress. This is complemented by co-factors that assist with glutathione recycling and cellular defence, in line with EFSA guidance.

Dr. Marini of the University of Bologna found evidence supporting enhanced bioavailability of this form, which may contribute to sustained cellular resilience.

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

Seeking Health stands out for product excellence and a solid manufacturing ethos, making it Welzo’s trusted pick for Optimal Glutathione Plus. The brand’s commitment to quality is shown by its USA-based facilities that meet or exceed current Good Manufacturing Practices (cGMP) and underline strict identity, purity and potency controls for every batch. This reliability, along with Seeking Health’s focus on premium, bioavailable ingredient forms like SelenoExcell high selenium yeast and riboflavin-5-phosphate, reinforces their industry standing as a reputable, professional-grade manufacturer.

Third-party testing and certifications are key to our evaluation. While public test results aren’t posted for this specific item, the brand communicates adherence to cGMP standards and emphasises purity and potency across products, a foundation we validate with the certifications we require and our expert team. This brand was evaluated by Welzo's healthcare professionals for compliance with these standards, ensuring alignment with our quality criteria.

We selected Seeking Health for Optimal Glutathione Plus because the brand’s formulation approach—combining stable S-acetyl-L-glutathione with essential co-factors in a vegetarian capsule—fits the product’s dedicated purpose while keeping stringent quality. Our partnership mirrors a thoughtful, evidence-based vetting process that prioritises trusted manufacturing and transparent quality practices.