n acetyl cysteine precursor of glutathione NAC N-Acetyl-L-Cysteine is nac precursor to glutathione

General Guidance Consult a healthcare professional prior to use, especially if you have a medical condition or are under medical supervision Use only as directed Specialized preparation methods should only be performed when appropriate and guided by a professional How to Prepare Mix fresh prior to use: Open capsule(s) and empty contents into a clean container Add distilled water or saline solution Allow to dissolve until the solution is clear Water-to-Capsule Ratio 13 capsules: 3 mL 4 capsules: 4 mL 5 capsules: 5 mL 6 capsules: 6 mL Important: Use room temperature liquid only Do not use hot water (heat may degrade glutathione) Storage Guidelines For optimal stability: Store at 6872F (2022C) Keep humidity below 50% Protect from heat, light, and moisture Do not freeze High Humidity Tips Store bottle inside a sealed bag with a desiccant Avoid prolonged exposure to open air Consider purchasing the 50 cap bottle High Heat / Refrigeration Guidance Refrigeration may be used in high-heat environments Always store bottle in a sealed bag with desiccant outside the bottle Prevent condensation exposure Consider purchasing the 50 cap bottle Shelf Life When stored properly, product stability is typically 35 years from manufacture date

doi: 10.1159/000118012

On an over-the-counter label, look at the Active Ingredients section on the Drug Facts panel, not the front of the box

Then read the purity and identity lines

As with any supplement, its critical to consult your medical team before introducing any major transformations in your diet and lifestyle