S-Acetyl L-Glutathione is a bioavailable antioxidant supplement that helps lift systemic glutathione levels for better cellular defence, supporting everyday resilience against stress. The key active ingredient is S-Acetyl L-Glutathione, a form designed for improved absorption and cellular delivery. Backed by Jarrow Formulas' decades of quality and cGMP manufacturing standards, this product stands for reliability and trusted sourcing.

Available Sizes & Variants:

60 tablets S-Acetyl L-Glutathione – daily antioxidant support.

Benefits & Features:

• Daily support for antioxidant balance helps maintain healthy cells.
• Active ingredient S-Acetyl L-Glutathione is designed for improved absorption and delivery to cells.
• Jarrow Formulas' quality system uses cGMP standards and third party testing.
• Brand heritage runs deep, with Opitac S-Acetyl L-Glutathione sourced for stability and purity, manufacturing in tightly controlled facilities, and rigorous third party verification to ensure consistency batch after batch.
• Intended for daily use to support antioxidant defences and immune resilience.

Opitac S-Acetyl L-Glutathione, a premium Japanese ingredient, is chosen for stability and purity. Jarrow Formulas manufactures this product in cGMP-certified facilities and uses in-house labs plus third party testing to verify identity and potency. With over 30 years of industry leadership, the brand combines science with transparency to deliver reliable antioxidant support. In wellness chats, acetyl l carnitine and liver king discussions often surface; this formula fits those conversations with a trusted, clean profile.

(other) Calcium phosphate, cellulose, stearic acid (vegetable source), silicon dioxide, magnesium stearate (vegetable source), and a food-grade coating.

• GTIN: 790011150695
• Manufacturer: Jarrow Formulas
• Categories: GlutathioneJarrow FormulasNew Arrivals
• 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 tablet daily with a meal or as advised by your healthcare provider. As a dietary supplement\, mix 1 level teaspoon (2.5 g) of powder into at least 6 oz of juice or water. Take 1 to 2 times daily with food. This product must be diluted into a liquid before ingestion.

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 bioavailable form of the antioxidant glutathione built for better absorption and cellular delivery.

This ingredient is sourced as Opitac S-Acetyl L-Glutathione, a premium Japanese material noted for stability and purity.

What Does S-Acetyl L-Glutathione Do?

S-Acetyl L-Glutathione helps with keeping glutathione status and takes part in antioxidant defence, supporting everyday cellular resilience.

Additionally, evidence suggests this form can contribute to immune resilience and oxidative protection, in line with normal physiological function and tissue support.

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

Welzo picked Jarrow Formulas as a partner for S-Acetyl L-Glutathione because the brand fits with our rigorous selection criteria for supplement suppliers. The manufacturer is renowned for manufacturing excellence, running cGMP-certified facilities verified by NSF International, which shows a solid commitment to quality from raw materials to finished product testing.

External validation sits at the core of our evaluation. Jarrow uses in-house analytical labs together with ISO- and USDA-accredited external testing to verify identity, potency, and purity across batches, underscoring a strong quality control framework that goes beyond basic requirements. This reputation is complemented by more than thirty years in the industry and ongoing recognition for scientific rigour and transparency, which helped solidify our faith in their capabilities.

Our endorsement reflects a collaborative stance with Welzo’s medical and quality teams. This brand was assessed by our medical team for compliance with our quality certification process. The result is a product partner well placed for the British market, offering a dependable, science-led option for S-Acetyl L-Glutathione.