L-Glutathione 250mg Tablets contain Glutathione, which is an amino acid with powerful antioxidant properties that contribute to the maintanance of healthy liver and liver cells. T How to Use: Recommended Daily Intake Of HealthAid L-Glutathione Tablet : Adults and children over 16 years of age, one to two tablets daily on an empty stomach, can be increased to three tablets if required, or as advised by a suitably qualified person. Potential Side Effects: Taking glutathione long-term has been linked to lower zinc levels. Inhaled glutathione may trigger asthma attacks in people who have asthma. Symptoms may include wheezing. Ingredients: Ingredients for L-Glutathione 250mg Tablets : Avicel, L-Glutathione, Stearic acid, Magnesium Stearate, Pharmaceutical glaze (shellac).