Fusion Astra 8 Immune Tonic is a high potency immune-boosting formula combining herbs traditionally used in Chinese medicine to promote a healthy immune system and build resistance against minor infections. May assist in the management of recurrent upper respiratory tract infections, including colds, flu and sore throat. Suitable for use throughout winter by adults and children over 2 years old who are prone to recurrent sore throats, colds and flu, and to aid the management of chronic fatigue syndrome. When taken after colds and flu, Astra 8 Immune Tonic may support recovery, enhance energy and vitality, reduce muscle aches, and help rebuild resistance against further minor infections. Taking Fusion Cough Lung Tonic at the same time may provide additional benefit when coughing is present. Also increases resistance to stress and improves stamina, so is ideal to take when feeling run down.