Metatone provides a combination of Vitamin B1 and four essential minerals. It is a liquid formula, which help provides a gentle boost during and after illness. Metatone - This original flavour tonic helps to restore health and vitality during or after illness. If you are feeling run down and tired after a cold or flu Metatones combination of essential minerals and vitamin B1 gives you that extra boost you need. It comes in a clear red syrup form making it easy to swallow.