Jarrow N-A-C Sustain (600mg) 60 tabs

arrow N-A-C Sustain 600mg - 60 Tabs

N-Acetyl-L-Cysteine (NAC) is one of the most widely researched antioxidant amino acids, prized primarily for its role as the rate-limiting precursor to glutathione - the body's most important endogenous antioxidant and central detoxification compound. While standard NAC supplements release their dose rapidly, Jarrow N-A-C Sustain takes a more sophisticated approach through its proprietary bi-layer Sustain tablet technology.

Each 600mg tablet is engineered as a dual-layer system: one-third delivers NAC via immediate quick release to establish prompt blood levels, while the remaining two-thirds releases gradually over time to sustain and maintain those levels throughout the day. This approach more closely mirrors the body's continuous need for cysteine and glutathione support, avoiding the sharp peak-and-trough profile of standard immediate-release formats. NAC's well-documented benefits extend to liver detoxification support, lung and respiratory health, immune function, and protection against oxidative stress. Vegan, Non-GMO, Gluten Free, and free from all major allergens, produced in cGMP-certified facilities. Note: NAC may alter liver function test results - inform your physician before any liver function testing.

• Bi-Layer Sustain Technology - 1/3 Quick Release, 2/3 Sustained Release - Jarrow's proprietary Sustain tablet combines immediate and extended delivery in a single bi-layer tablet, releasing 600mg of NAC in two phases to rapidly establish and then continuously maintain blood levels throughout the day - a significant advantage over standard immediate-release NAC supplements.

• Precursor to Glutathione - the Body's Master Antioxidant - NAC provides the rate-limiting precursor L-cysteine required for the synthesis of glutathione, the body's most abundant endogenous antioxidant, which plays a central role in cellular detoxification, immune defence, and protection against oxidative stress across tissues.

• Supports Liver Detoxification and Lung Health - NAC's role in glutathione production directly supports the liver's detoxification pathways, and research has documented its benefits for respiratory health and lung function, making it a broadly relevant supplement for antioxidant and organ health support.