L-Glutathione | 1500mg | 2 x 3ml

Antioxidant defence

Glutathione helps maintain the balance between oxidants and antioxidants inside cells. In its reduced form, it can take part directly in reactions that neutralise reactive molecules generated during normal metabolism.

Glutathione-dependent enzyme activity

Enzymes including glutathione peroxidases and glutathione S-transferases use glutathione as part of their normal activity. These enzyme systems are studied in connection with peroxide control, cellular protection and the metabolic processing of a wide range of compounds.

Cellular protection and healthy-ageing research

Changes in glutathione balance have been investigated in relation to oxidative stress, ageing and a range of physiological conditions. This has made glutathione metabolism an important area of research in cellular protection and healthy ageing.

Skin-health research

Glutathione has also been studied in relation to melanin production, oxidative stress in the skin and other measures of skin condition. The available evidence varies by product form and study design, so findings should not be treated as proof of a specific outcome from this finished cartridge.

1 × L-Glutathione 1500 mg / 3 ml cartridge
20 × ultra-comfort pen needles
20 × alcohol wipes
Reusable metal pen not included

L-Glutathione Refill Kit — 1500 mg / 3 ml

L-Glutathione is a naturally occurring tripeptide made from the amino acids glutamate, cysteine and glycine. Scientific literature describes glutathione as one of the body's principal intracellular antioxidants, helping cells maintain redox balance and manage reactive molecules produced during normal metabolism.

Beyond its direct antioxidant role, glutathione is used by enzyme systems including glutathione peroxidases and glutathione S-transferases. These pathways are studied in relation to peroxide breakdown, cellular protection, metabolic processing, protein regulation and normal immune activity.

Glutathione is also investigated within skin biology because antioxidant balance and melanin production are influenced by redox processes. Published studies vary considerably in formulation, dose, delivery method and study design, and findings from oral, topical or other preparations should not automatically be applied to a different finished product.

This Nadura refill kit contains a 3 ml cartridge providing 1500 mg of L-Glutathione, together with 20 ultra-comfort pen needles and 20 alcohol wipes. It is intended for customers who already have the compatible reusable Nadura metal pen. The reusable pen is not included in this refill kit.

Store refrigerated between 2°C and 8°C. Do not freeze. Protect from light and keep out of reach of children. Refer to the instructions supplied with the product for handling information.

Scientific references

• Glutathione metabolism and its implications for health
• The antioxidant glutathione
• Clinical research into glutathione and skin-related outcomes

L-Glutathione functions mainly through a cycle between its reduced form, GSH, and its oxidised form, GSSG. In its reduced form, glutathione can donate electrons to reactive molecules and peroxides, helping limit oxidative reactions within cells.

Glutathione peroxidase enzymes use GSH when converting peroxides into less reactive products. Glutathione reductase then helps recycle oxidised glutathione back into its reduced form using NADPH, allowing the antioxidant cycle to continue.

Glutathione S-transferase enzymes also use glutathione when processing certain compounds for removal from cells. These mechanisms describe established biological roles of glutathione, but they do not by themselves establish the effects or outcomes of a particular finished formulation.

L-Glutathione functions mainly through a cycle between its reduced form, GSH, and its oxidised form, GSSG. In its reduced form, glutathione can donate electrons to reactive molecules and peroxides, helping limit oxidative reactions within cells.

Glutathione peroxidase enzymes use GSH when converting peroxides into less reactive products. Glutathione reductase then helps recycle oxidised glutathione back into its reduced form using NADPH, allowing the antioxidant cycle to continue.

Glutathione S-transferase enzymes also use glutathione when processing certain compounds for removal from cells. These mechanisms describe established biological roles of glutathione, but they do not by themselves establish the effects or outcomes of a particular finished formulation.