Promotes Optimal Liver Health. Supports Healthy Detoxification Processes. Help support liver health and your body's vital detoxification processes with NOW Liver Refresh, a combination of nutrients and herbs designed to support the liver's role in these processes. Liver Refresh combines milk thistle extract with a unique herb-enzyme blend to create a balanced botanical formula for the support of healthy liver function. N-acetyl-cysteine, methionine and other nutrients are included to support the production of glutathione, a potent free radical scavenger that also plays a critical role in maintaining the body's normal elimination pathways.